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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 26 Nov '22

26 Nov '22

This is an automated weekly mailing describing the state of the Global IPv4 Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG. Daily listings are sent to bgp-stats(a)lists.apnic.net. For historical data, please see https://thyme.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. IPv4 Routing Table Report 04:00 +10GMT Sat 26 Nov, 2022 BGP Table (Global) as seen in Japan. Report Website: https://thyme.apnic.net Detailed Analysis: https://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 916410 Prefixes after maximum aggregation (per Origin AS): 346196 Deaggregation factor: 2.65 Unique aggregates announced (without unneeded subnets): 442878 Total ASes present in the Internet Routing Table: 73851 Prefixes per ASN: 12.41 Origin-only ASes present in the Internet Routing Table: 63411 Origin ASes announcing only one prefix: 26014 Transit ASes present in the Internet Routing Table: 10440 Transit-only ASes present in the Internet Routing Table: 416 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 55 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 991 Number of instances of unregistered ASNs: 998 Number of 32-bit ASNs allocated by the RIRs: 40721 Number of 32-bit ASNs visible in the Routing Table: 33758 Prefixes from 32-bit ASNs in the Routing Table: 164456 Number of bogon 32-bit ASNs visible in the Routing Table: 20 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 519 Number of addresses announced to Internet: 3063543424 Equivalent to 182 /8s, 153 /16s and 246 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 311115 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 239651 Total APNIC prefixes after maximum aggregation: 68233 APNIC Deaggregation factor: 3.51 Prefixes being announced from the APNIC address blocks: 234616 Unique aggregates announced from the APNIC address blocks: 97365 APNIC Region origin ASes present in the Internet Routing Table: 13129 APNIC Prefixes per ASN: 17.87 APNIC Region origin ASes announcing only one prefix: 3814 APNIC Region transit ASes present in the Internet Routing Table: 1756 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 31 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8380 Number of APNIC addresses announced to Internet: 773709568 Equivalent to 46 /8s, 29 /16s and 223 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-151865 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 267370 Total ARIN prefixes after maximum aggregation: 121947 ARIN Deaggregation factor: 2.19 Prefixes being announced from the ARIN address blocks: 268887 Unique aggregates announced from the ARIN address blocks: 129472 ARIN Region origin ASes present in the Internet Routing Table: 19076 ARIN Prefixes per ASN: 14.10 ARIN Region origin ASes announcing only one prefix: 6975 ARIN Region transit ASes present in the Internet Routing Table: 1934 Average ARIN Region AS path length visible: 3.7 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4685 Number of ARIN addresses announced to Internet: 1289378560 Equivalent to 76 /8s, 218 /16s and 91 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-401308 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 262443 Total RIPE prefixes after maximum aggregation: 121256 RIPE Deaggregation factor: 2.16 Prefixes being announced from the RIPE address blocks: 259105 Unique aggregates announced from the RIPE address blocks: 154703 RIPE Region origin ASes present in the Internet Routing Table: 28130 RIPE Prefixes per ASN: 9.21 RIPE Region origin ASes announcing only one prefix: 11967 RIPE Region transit ASes present in the Internet Routing Table: 3956 Average RIPE Region AS path length visible: 4.2 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10893 Number of RIPE addresses announced to Internet: 716124032 Equivalent to 42 /8s, 175 /16s and 47 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 117281 Total LACNIC prefixes after maximum aggregation: 28363 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 116654 Unique aggregates announced from the LACNIC address blocks: 48886 LACNIC Region origin ASes present in the Internet Routing Table: 11006 LACNIC Prefixes per ASN: 10.60 LACNIC Region origin ASes announcing only one prefix: 2663 LACNIC Region transit ASes present in the Internet Routing Table: 2267 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 55 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8764 Number of LACNIC addresses announced to Internet: 175912448 Equivalent to 10 /8s, 124 /16s and 54 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 28674 Total AfriNIC prefixes after maximum aggregation: 5642 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 36629 Unique aggregates announced from the AfriNIC address blocks: 12024 AfriNIC Region origin ASes present in the Internet Routing Table: 1708 AfriNIC Prefixes per ASN: 21.45 AfriNIC Region origin ASes announcing only one prefix: 595 AfriNIC Region transit ASes present in the Internet Routing Table: 329 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1036 Number of AfriNIC addresses announced to Internet: 108127744 Equivalent to 6 /8s, 113 /16s and 230 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 9139 8884 50 CHINAMOBILE-CN China Mobile Communicati 7545 5948 786 695 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4880 4192 75 ERX-CERNET-BKB China Education and Rese 7552 3624 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3515 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3365 1867 82 VNPT-AS-VN VNPT Corp, VN 9498 2543 499 237 BBIL-AP BHARTI Airtel Ltd., IN 4766 2536 11252 601 KIXS-AS-KR Korea Telecom, KR 24560 2301 849 417 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 45090 2180 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 7661 10622 2886 AMAZON-02, US 11492 4579 303 539 CABLEONE, US 7155 3966 265 32 VIASAT-SP-BACKBONE, US 22773 3729 3061 327 ASN-CXA-ALL-CCI-22773-RDC, US 16625 3588 1879 2570 AKAMAI-AS, US 6327 3524 1320 63 SHAW, CA 749 3065 50661 2332 DNIC-AS-00749, US 30036 2589 369 312 MEDIACOM-ENTERPRISE-BUSINESS, US 7018 2585 24059 1552 ATT-INTERNET4, US 396982 2564 3482 359 GOOGLE-CLOUD-PLATFORM, US Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6952 1730 145 UNI2-AS, ES 9121 6401 1692 17 TTNET, TR 20940 4107 3400 183 AKAMAI-ASN1, NL 39891 4010 234 47 ALJAWWALSTC-AS, SA 8551 3979 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2950 2290 912 ROSTELECOM-AS, RU 9009 2647 253 1361 M247, RO 47331 2548 377 1923 TTNET, TR 34984 2246 357 610 TELLCOM-AS, TR 6849 2194 339 20 UKRTELNET, UA Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10889 3350 600 Uninet S.A. de C.V., MX 10620 3455 506 852 Telmex Colombia S.A., CO 11830 2301 369 64 Instituto Costarricense de Electricidad 13999 2125 348 550 Mega Cable, S.A. de C.V., MX 28573 1336 2327 262 Claro NXT Telecomunicacoes Ltda, BR 6503 1293 338 521 Axtel, S.A.B. de C.V., MX 3816 1287 728 154 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 11664 1131 183 478 Techtel LMDS Comunicaciones Interactiva 6147 1087 369 22 Telefonica del Peru S.A.A., PE 26615 988 2466 43 TIM SA, BR Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1545 537 31 RAYA-AS, EG 24863 1539 393 21 LINKdotNET-AS, EG 36992 1356 1520 269 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1011 67 40 ORANGE-COTE-IVOIRE, CI 36935 879 520 42 Vodafone-, EG 6713 613 1863 34 IAM-AS, MA 15399 530 54 45 WANANCHI-, KE 37342 441 32 1 MOVITEL, MZ 23889 400 231 14 MauritiusTelecom, MU Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10889 3350 600 Uninet S.A. de C.V., MX 9808 9139 8884 50 CHINAMOBILE-CN China Mobile Communicati 16509 7661 10622 2886 AMAZON-02, US 12479 6952 1730 145 UNI2-AS, ES 9121 6401 1692 17 TTNET, TR 7545 5948 786 695 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4880 4192 75 ERX-CERNET-BKB China Education and Rese 11492 4579 303 539 CABLEONE, US 20940 4107 3400 183 AKAMAI-ASN1, NL 39891 4010 234 47 ALJAWWALSTC-AS, SA Complete listing at https://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9139 9089 CHINAMOBILE-CN China Mobile Communications Grou 12479 6952 6807 UNI2-AS, ES 9121 6401 6384 TTNET, TR 7545 5948 5253 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4880 4805 ERX-CERNET-BKB China Education and Research Net 16509 7661 4775 AMAZON-02, US 11492 4579 4040 CABLEONE, US 39891 4010 3963 ALJAWWALSTC-AS, SA 8551 3979 3941 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3966 3934 VIASAT-SP-BACKBONE, US Complete listing at https://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 65000 PRIVATE 2.92.64.0/20 8371 VIMPELCOM-NN Vimpelcom, Nizh 65000 PRIVATE 2.92.80.0/20 8371 VIMPELCOM-NN Vimpelcom, Nizh 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.12.76.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.14.115.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M Complete listing at https://thyme.apnic.net/current/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://thyme.apnic.net/current/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.184.0/24 Origin: 174 COGENT-174, US 23.131.184.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP 23.131.188.0/24 Origin: 46450 PILOT, US 23.131.188.0/24 Transit: 1299 TWELVE99 Arelion, fka Telia Carrier, SE Complete listing at https://thyme.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:13 /10:39 /11:100 /12:295 /13:587 /14:1201 /15:2045 /16:13523 /17:8317 /18:13914 /19:25200 /20:44361 /21:52438 /22:110265 /23:97998 /24:545272 /25:826 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5983 6952 UNI2-AS, ES 9121 5553 6401 TTNET, TR 8151 4834 10889 Uninet S.A. de C.V., MX 11492 3485 4579 CABLEONE, US 8551 3443 3979 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3332 3524 SHAW, CA 39891 3193 4010 ALJAWWALSTC-AS, SA 7155 3055 3966 VIASAT-SP-BACKBONE, US 22773 2752 3729 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2247 2589 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1870 2:1029 3:166 4:5 5:4046 6:117 7:5 8:1585 9:1 11:173 12:1617 13:380 14:2377 15:287 16:72 17:366 18:386 20:239 21:4 22:188 23:6020 24:2465 25:6 27:2701 29:19 31:2483 32:98 34:8 35:94 36:1806 37:4544 38:3870 39:770 40:144 41:3951 42:1195 43:2303 44:303 45:16369 46:4144 47:379 49:1716 50:1933 51:244 52:1506 54:398 55:798 56:8 57:78 58:1797 59:1157 60:1005 61:2428 62:2564 63:1953 64:5649 65:2339 66:4851 67:3003 68:1381 69:4178 70:1293 71:688 72:2999 74:2645 75:1472 76:600 77:2253 78:3964 79:3155 80:2043 81:1830 82:1500 83:1220 84:1511 85:3752 86:745 87:1929 88:2842 89:3483 90:573 91:7614 92:1991 93:2573 94:3543 95:4827 96:1338 97:348 98:1174 99:740 100:69 101:1055 102:2455 103:30537 104:4555 105:477 106:828 107:2532 108:919 109:4280 110:2016 111:3318 112:2039 113:1571 114:1613 115:2073 116:1908 117:2468 118:2335 119:1871 120:1726 121:1112 122:2600 123:2137 124:1577 125:2200 128:1260 129:979 130:972 131:2024 132:842 133:401 134:1914 135:295 136:880 137:910 138:2542 139:1521 140:1049 141:1482 142:1417 143:1408 144:1200 145:352 146:1896 147:1511 148:2273 149:1846 150:866 151:1145 152:1836 153:456 154:3807 155:1387 156:1633 157:1290 158:1041 159:2241 160:2571 161:1424 162:3518 163:1455 164:1673 165:1641 166:843 167:1718 168:3863 169:918 170:4553 171:867 172:3517 173:3113 174:1032 175:1170 176:3629 177:4782 178:3551 179:2140 180:2359 181:3341 182:3240 183:1921 184:2356 185:19942 186:4611 187:3953 188:4034 189:3445 190:9052 191:1459 192:10995 193:8771 194:7192 195:5078 196:2995 197:2421 198:6009 199:6097 200:7648 201:5832 202:10595 203:10089 204:4602 205:3458 206:3836 207:3400 208:4108 209:4808 210:4420 211:2442 212:4035 213:3520 214:1104 215:57 216:6554 217:2613 218:1289 219:575 220:2048 221:953 222:837 223:2037 End of report

1 0

Format change for index pages of RIS MRT data files and RIPE Atlas daily dataset dumps
by Oleg Muravskiy 24 Nov '22

24 Nov '22

Dear RIS and RIPE Atlas users, On Wednesday, 30 November 2022 we are planning to migrate the web server at <https://data.ris.ripe.net/> as well as <https://data-store.ripe.net> from Apache httpd to nginx. This will affect how the file listings in HTML index pages are generated, including the following: * RIS MRT data files (updates and dumps) * RIPE Atlas daily dataset dumps If you rely on the format of these pages, you need to update your software. Before we do the upgrade, you could check the new format of the index pages at: https://test-data.ris.ripe.net/rrc00/ We would like to ask you to avoid relying on the specific format of the index.html files. If you are fetching BGP dump files, please use the REST API that is described at: https://ris.ripe.net/docs/40_Prototypes/15_per_rrc_dumps.html You might also consider using per-peer dump files instead: https://ris.ripe.net/docs/40_Prototypes/10_per_peer_dumps.html We want to encourage you to provide your feedback on the API, so that we could improve it and build a similar API for the update files. If you are fetching update files, please use direct URLs to files as described at: https://ris.ripe.net/docs/20_raw_data_mrt.html#name-and-location Kind regards, Oleg Muravskiy, Robert Kisteleki RIPE NCC

1 0

Adding "::" notation to RIPE DB
by James Bensley 24 Nov '22

24 Nov '22

Dear Working Group, I want to discuss a proposal to change the format of the "members" field of the AS-SET and Route-Set objects in the RIPE DB. I do not know what the process is for this so please guide me if this is the wrong place or method for raising this kind of proposal. Specifically, I want to discuss adding supported for the "::" source notation in the "members" field of an AS-SET or Route-Set object. Currently my AS-SET might look like the following when the tree is fully expanded: as-set: AS4200000011:AS-EXAMPLE-11 -> members: AS4200000011 -> members: AS4200000012:AS-EXAMPLE-12 - -> members: AS4200000012 - -> members: AS4200000021 -> members: AS4200000013:AS-EXAMPLE-13 - -> members: AS4200000013 - -> members: AS4200000022:AS-EXAMPLE-22 - - -> members: AS4200000031 When a peer or upstream is building a prefix lists towards me (AS4200000011), they need to generate a prefix list for my entire AS tree/route set tree. Historically, objects (AS-Sets/Roue-Sets) with the same name have been registered in different IRR databases. This causes a problem because it's not clear which IRR DB the object should be pulled from. When building a prefix list for a tree, some of the object are pulled from the wrong IRR DB. For example, AS-GOOGLE currently exists in the RIPE and APNIC IRR DBs, but the AS-SET in both DBs is empty: $whois -h whois.ripe.net AS-GOOGLE | grep -E "as-set|members" as-set: AS-GOOGLE $whois -h whois.apnic.net AS-GOOGLE | grep -E "as-set|members" as-set: AS-GOOGLE As per Google's peeringdb page, the correct data source for their AS-SET is RADB: https://www.peeringdb.com/net/433 $whois -h whois.radb.net AS-GOOGLE | grep -E "as-set|members" as-set: AS-GOOGLE members: AS11344 members: AS13949 members: AS15169 ... The above query to RADB produces the correct information. However, often when building a prefix set to a peer, the wrong object is used and an empty prefix list is generated, or the wrong prefix list, and the AS-SET may contain other false members too. Historically people have registered objects with the same AS-SET or Route-Set name in different IRR DBs, both by accident and maliciously, and this practice continues today. It is very difficult to get these issues resolved in a timely manner and the result on daily operations is that operators can't establish a new peering session with a customer/peer/upstream, or update a prefix list facing an existing customer/peer/upstream, because we can't generate the prefix list. We need to be able to signal which IRR DB is authoritative for an AS-SET or Route-Set object. For this reason I ask, what it would take to allow the use of the "::" indicator in the "members" field of an AS-SET and Route-Set so that in my own AS-SET I can specify the correct source for the direct members (my customers), and in their AS-SET's they can specify the correct source for each of their customers, and so on, all the way down the tree, so that I end up with my AS-SET tree looking like the following when fully expanded: -> members: RIPE::AS4200000011 -> members: RADB::AS4200000012:AS-EXAMPLE-12 - -> members: RIPE::AS4200000012 - -> members: ARIN::AS4200000021 -> members: ARIN::AS4200000013:AS-EXAMPLE-13 - -> members: APNIC::AS4200000013 - -> members: ARIN::AS4200000022:AS-EXAMPLE-22 - - -> members: RADB::AS4200000031 Kind regards, James Bensley (he/him) Network Team Inter.link GmbH Boxhagener Str. 80, 10245 Berlin, Germany Email: hello(a)inter.link, Phone: +49-030-577123821 Registry: Local court Charlottenburg, HRB 138876 Managing directors: Marc Korthaus, Theo Voss

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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 19 Nov '22

19 Nov '22

This is an automated weekly mailing describing the state of the Global IPv4 Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG. Daily listings are sent to bgp-stats(a)lists.apnic.net. For historical data, please see https://thyme.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. IPv4 Routing Table Report 04:00 +10GMT Sat 19 Nov, 2022 BGP Table (Global) as seen in Japan. Report Website: https://thyme.apnic.net Detailed Analysis: https://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 915701 Prefixes after maximum aggregation (per Origin AS): 345977 Deaggregation factor: 2.65 Unique aggregates announced (without unneeded subnets): 442610 Total ASes present in the Internet Routing Table: 73817 Prefixes per ASN: 12.41 Origin-only ASes present in the Internet Routing Table: 63392 Origin ASes announcing only one prefix: 26057 Transit ASes present in the Internet Routing Table: 10425 Transit-only ASes present in the Internet Routing Table: 418 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 55 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 1003 Number of instances of unregistered ASNs: 1005 Number of 32-bit ASNs allocated by the RIRs: 40651 Number of 32-bit ASNs visible in the Routing Table: 33699 Prefixes from 32-bit ASNs in the Routing Table: 163685 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 503 Number of addresses announced to Internet: 3063689728 Equivalent to 182 /8s, 156 /16s and 50 /24s Percentage of available address space announced: 82.8 Percentage of allocated address space announced: 82.8 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 311000 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 239240 Total APNIC prefixes after maximum aggregation: 68157 APNIC Deaggregation factor: 3.51 Prefixes being announced from the APNIC address blocks: 234125 Unique aggregates announced from the APNIC address blocks: 97106 APNIC Region origin ASes present in the Internet Routing Table: 13085 APNIC Prefixes per ASN: 17.89 APNIC Region origin ASes announcing only one prefix: 3794 APNIC Region transit ASes present in the Internet Routing Table: 1756 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 27 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8340 Number of APNIC addresses announced to Internet: 773580928 Equivalent to 46 /8s, 27 /16s and 232 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-151865 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 267352 Total ARIN prefixes after maximum aggregation: 121879 ARIN Deaggregation factor: 2.19 Prefixes being announced from the ARIN address blocks: 268850 Unique aggregates announced from the ARIN address blocks: 129326 ARIN Region origin ASes present in the Internet Routing Table: 19072 ARIN Prefixes per ASN: 14.10 ARIN Region origin ASes announcing only one prefix: 6974 ARIN Region transit ASes present in the Internet Routing Table: 1931 Average ARIN Region AS path length visible: 3.7 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4681 Number of ARIN addresses announced to Internet: 1289516032 Equivalent to 76 /8s, 220 /16s and 116 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-401308 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 262415 Total RIPE prefixes after maximum aggregation: 121195 RIPE Deaggregation factor: 2.17 Prefixes being announced from the RIPE address blocks: 259147 Unique aggregates announced from the RIPE address blocks: 154803 RIPE Region origin ASes present in the Internet Routing Table: 28147 RIPE Prefixes per ASN: 9.21 RIPE Region origin ASes announcing only one prefix: 12005 RIPE Region transit ASes present in the Internet Routing Table: 3954 Average RIPE Region AS path length visible: 4.2 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10885 Number of RIPE addresses announced to Internet: 716164992 Equivalent to 42 /8s, 175 /16s and 207 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 117134 Total LACNIC prefixes after maximum aggregation: 28331 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 116499 Unique aggregates announced from the LACNIC address blocks: 48937 LACNIC Region origin ASes present in the Internet Routing Table: 11007 LACNIC Prefixes per ASN: 10.58 LACNIC Region origin ASes announcing only one prefix: 2692 LACNIC Region transit ASes present in the Internet Routing Table: 2265 Average LACNIC Region AS path length visible: 4.9 Max LACNIC Region AS path length visible: 55 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8762 Number of LACNIC addresses announced to Internet: 176021504 Equivalent to 10 /8s, 125 /16s and 224 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 28557 Total AfriNIC prefixes after maximum aggregation: 5646 AfriNIC Deaggregation factor: 5.06 Prefixes being announced from the AfriNIC address blocks: 36577 Unique aggregates announced from the AfriNIC address blocks: 12021 AfriNIC Region origin ASes present in the Internet Routing Table: 1703 AfriNIC Prefixes per ASN: 21.48 AfriNIC Region origin ASes announcing only one prefix: 592 AfriNIC Region transit ASes present in the Internet Routing Table: 323 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1031 Number of AfriNIC addresses announced to Internet: 108122112 Equivalent to 6 /8s, 113 /16s and 208 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 9128 8884 50 CHINAMOBILE-CN China Mobile Communicati 7545 5945 786 696 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4879 4192 75 ERX-CERNET-BKB China Education and Rese 7552 3613 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3516 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3401 1877 66 VNPT-AS-VN VNPT Corp, VN 9498 2537 499 237 BBIL-AP BHARTI Airtel Ltd., IN 4766 2536 11252 602 KIXS-AS-KR Korea Telecom, KR 24560 2288 849 419 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 45090 2180 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 7635 10621 2909 AMAZON-02, US 11492 4603 305 506 CABLEONE, US 7155 3894 265 32 VIASAT-SP-BACKBONE, US 22773 3742 3062 338 ASN-CXA-ALL-CCI-22773-RDC, US 16625 3564 1861 2556 AKAMAI-AS, US 6327 3524 1320 63 SHAW, CA 749 3064 50657 2331 DNIC-AS-00749, US 30036 2600 372 276 MEDIACOM-ENTERPRISE-BUSINESS, US 7018 2572 24057 1546 ATT-INTERNET4, US 396982 2564 3482 359 GOOGLE-CLOUD-PLATFORM, US Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6955 1730 144 UNI2-AS, ES 9121 6712 1692 17 TTNET, TR 20940 4120 3400 182 AKAMAI-ASN1, NL 39891 4010 234 47 ALJAWWALSTC-AS, SA 8551 3988 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2955 2290 912 ROSTELECOM-AS, RU 9009 2643 253 1360 M247, RO 6849 2332 339 20 UKRTELNET, UA 34984 2242 357 615 TELLCOM-AS, TR 47331 2199 336 1670 TTNET, TR Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10850 3347 598 Uninet S.A. de C.V., MX 10620 3454 506 855 Telmex Colombia S.A., CO 11830 2300 369 64 Instituto Costarricense de Electricidad 13999 2123 347 551 Mega Cable, S.A. de C.V., MX 28573 1336 2328 260 Claro NXT Telecomunicacoes Ltda, BR 6503 1293 338 521 Axtel, S.A.B. de C.V., MX 3816 1287 728 154 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 11664 1112 182 475 Techtel LMDS Comunicaciones Interactiva 6147 1087 369 22 Telefonica del Peru S.A.A., PE 26615 991 2466 43 TIM SA, BR Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1572 393 21 LINKdotNET-AS, EG 24835 1545 521 31 RAYA-AS, EG 36992 1355 1520 270 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 951 65 53 ORANGE-COTE-IVOIRE, CI 36935 828 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 528 53 43 WANANCHI-, KE 37342 494 32 1 MOVITEL, MZ 23889 400 231 14 MauritiusTelecom, MU Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10850 3347 598 Uninet S.A. de C.V., MX 9808 9128 8884 50 CHINAMOBILE-CN China Mobile Communicati 16509 7635 10621 2909 AMAZON-02, US 12479 6955 1730 144 UNI2-AS, ES 9121 6712 1692 17 TTNET, TR 7545 5945 786 696 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4879 4192 75 ERX-CERNET-BKB China Education and Rese 11492 4603 305 506 CABLEONE, US 20940 4120 3400 182 AKAMAI-ASN1, NL 39891 4010 234 47 ALJAWWALSTC-AS, SA Complete listing at https://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9128 9078 CHINAMOBILE-CN China Mobile Communications Grou 12479 6955 6811 UNI2-AS, ES 9121 6712 6695 TTNET, TR 7545 5945 5249 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4879 4804 ERX-CERNET-BKB China Education and Research Net 16509 7635 4726 AMAZON-02, US 11492 4603 4097 CABLEONE, US 39891 4010 3963 ALJAWWALSTC-AS, SA 8551 3988 3950 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 20940 4120 3938 AKAMAI-ASN1, NL Complete listing at https://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.12.76.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.14.115.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 25674 UNALLOCATED 8.19.146.0/24 3356 LEVEL3, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US Complete listing at https://thyme.apnic.net/current/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://thyme.apnic.net/current/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.181.240.0/24 Origin: 399613 UNASSIGNED 23.181.240.0/24 Transit: 11992 CENTENNIAL-, PR 27.100.7.0/24 Origin: 56096 UNASSIGNED 27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet Complete listing at https://thyme.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:13 /10:39 /11:100 /12:295 /13:587 /14:1200 /15:2044 /16:13523 /17:8346 /18:13931 /19:25180 /20:44381 /21:52363 /22:110228 /23:98037 /24:544621 /25:797 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5978 6955 UNI2-AS, ES 9121 5867 6712 TTNET, TR 8151 4798 10850 Uninet S.A. de C.V., MX 11492 3509 4603 CABLEONE, US 8551 3452 3988 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3332 3524 SHAW, CA 39891 3193 4010 ALJAWWALSTC-AS, SA 7155 2983 3894 VIASAT-SP-BACKBONE, US 22773 2765 3742 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2256 2600 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1875 2:1029 3:166 4:5 5:4032 6:118 7:5 8:1582 9:1 11:173 12:1616 13:381 14:2379 15:287 16:71 17:365 18:383 20:239 21:4 22:188 23:6023 24:2468 25:6 27:2703 29:19 31:2476 32:90 34:8 35:94 36:1796 37:4544 38:3775 39:770 40:144 41:3930 42:1194 43:2288 44:300 45:16295 46:4159 47:379 49:1721 50:1924 51:244 52:1503 54:398 55:844 56:8 57:78 58:1797 59:1162 60:1005 61:2427 62:2578 63:1952 64:5641 65:2334 66:4825 67:3011 68:1382 69:4160 70:1290 71:681 72:2999 74:2645 75:1471 76:600 77:2241 78:3961 79:3156 80:2034 81:1822 82:1496 83:1217 84:1505 85:3752 86:733 87:1921 88:2835 89:3448 90:569 91:7594 92:2019 93:2567 94:3526 95:4834 96:1340 97:348 98:1172 99:740 100:69 101:1072 102:2441 103:30387 104:4568 105:479 106:827 107:2540 108:921 109:4316 110:2014 111:3312 112:2052 113:1564 114:1589 115:2040 116:1906 117:2478 118:2327 119:1876 120:1724 121:1113 122:2592 123:2123 124:1576 125:2198 128:1254 129:981 130:974 131:2038 132:842 133:401 134:1914 135:293 136:877 137:920 138:2537 139:1515 140:1104 141:1482 142:1420 143:1403 144:1210 145:350 146:1888 147:1513 148:2264 149:1843 150:866 151:1149 152:1836 153:455 154:3840 155:1410 156:1625 157:1290 158:1038 159:2235 160:2529 161:1421 162:3512 163:1456 164:1676 165:1628 166:836 167:1708 168:3847 169:917 170:4535 171:855 172:3509 173:3109 174:1034 175:1158 176:3611 177:4795 178:3554 179:2137 180:2352 181:3341 182:3241 183:1935 184:2355 185:19923 186:4550 187:3951 188:4043 189:3426 190:9066 191:1445 192:11007 193:8770 194:7186 195:5101 196:2962 197:2478 198:6012 199:6087 200:7635 201:5833 202:10574 203:10049 204:4607 205:3482 206:3844 207:3398 208:4112 209:4816 210:4418 211:2440 212:4052 213:3523 214:1099 215:57 216:6546 217:2622 218:1286 219:573 220:2051 221:948 222:838 223:2019 End of report

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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 12 Nov '22

12 Nov '22

This is an automated weekly mailing describing the state of the Global IPv4 Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG. Daily listings are sent to bgp-stats(a)lists.apnic.net. For historical data, please see https://thyme.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. IPv4 Routing Table Report 04:00 +10GMT Sat 12 Nov, 2022 BGP Table (Global) as seen in Japan. Report Website: https://thyme.apnic.net Detailed Analysis: https://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 914964 Prefixes after maximum aggregation (per Origin AS): 345602 Deaggregation factor: 2.65 Unique aggregates announced (without unneeded subnets): 441991 Total ASes present in the Internet Routing Table: 73771 Prefixes per ASN: 12.40 Origin-only ASes present in the Internet Routing Table: 63375 Origin ASes announcing only one prefix: 26011 Transit ASes present in the Internet Routing Table: 10396 Transit-only ASes present in the Internet Routing Table: 421 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 55 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 1047 Number of instances of unregistered ASNs: 1049 Number of 32-bit ASNs allocated by the RIRs: 40587 Number of 32-bit ASNs visible in the Routing Table: 33639 Prefixes from 32-bit ASNs in the Routing Table: 163086 Number of bogon 32-bit ASNs visible in the Routing Table: 10 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 520 Number of addresses announced to Internet: 3064036352 Equivalent to 182 /8s, 161 /16s and 124 /24s Percentage of available address space announced: 82.8 Percentage of allocated address space announced: 82.8 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 310802 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 239088 Total APNIC prefixes after maximum aggregation: 68087 APNIC Deaggregation factor: 3.51 Prefixes being announced from the APNIC address blocks: 233936 Unique aggregates announced from the APNIC address blocks: 96889 APNIC Region origin ASes present in the Internet Routing Table: 13046 APNIC Prefixes per ASN: 17.93 APNIC Region origin ASes announcing only one prefix: 3757 APNIC Region transit ASes present in the Internet Routing Table: 1749 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8299 Number of APNIC addresses announced to Internet: 773753216 Equivalent to 46 /8s, 30 /16s and 137 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-151865 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 267115 Total ARIN prefixes after maximum aggregation: 121839 ARIN Deaggregation factor: 2.19 Prefixes being announced from the ARIN address blocks: 268506 Unique aggregates announced from the ARIN address blocks: 129060 ARIN Region origin ASes present in the Internet Routing Table: 19064 ARIN Prefixes per ASN: 14.08 ARIN Region origin ASes announcing only one prefix: 6977 ARIN Region transit ASes present in the Internet Routing Table: 1932 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4678 Number of ARIN addresses announced to Internet: 1289548800 Equivalent to 76 /8s, 220 /16s and 244 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-401308 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 262050 Total RIPE prefixes after maximum aggregation: 121085 RIPE Deaggregation factor: 2.16 Prefixes being announced from the RIPE address blocks: 258948 Unique aggregates announced from the RIPE address blocks: 154970 RIPE Region origin ASes present in the Internet Routing Table: 28150 RIPE Prefixes per ASN: 9.20 RIPE Region origin ASes announcing only one prefix: 12001 RIPE Region transit ASes present in the Internet Routing Table: 3946 Average RIPE Region AS path length visible: 4.2 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10869 Number of RIPE addresses announced to Internet: 716379776 Equivalent to 42 /8s, 179 /16s and 22 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 117020 Total LACNIC prefixes after maximum aggregation: 28176 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 116457 Unique aggregates announced from the LACNIC address blocks: 48612 LACNIC Region origin ASes present in the Internet Routing Table: 10991 LACNIC Prefixes per ASN: 10.60 LACNIC Region origin ASes announcing only one prefix: 2681 LACNIC Region transit ASes present in the Internet Routing Table: 2252 Average LACNIC Region AS path length visible: 4.9 Max LACNIC Region AS path length visible: 55 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8757 Number of LACNIC addresses announced to Internet: 175986688 Equivalent to 10 /8s, 125 /16s and 88 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 28644 Total AfriNIC prefixes after maximum aggregation: 5631 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 36597 Unique aggregates announced from the AfriNIC address blocks: 12028 AfriNIC Region origin ASes present in the Internet Routing Table: 1708 AfriNIC Prefixes per ASN: 21.43 AfriNIC Region origin ASes announcing only one prefix: 595 AfriNIC Region transit ASes present in the Internet Routing Table: 329 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1036 Number of AfriNIC addresses announced to Internet: 108078848 Equivalent to 6 /8s, 113 /16s and 39 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 9132 8884 50 CHINAMOBILE-CN China Mobile Communicati 7545 5946 786 695 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4872 4192 75 ERX-CERNET-BKB China Education and Rese 7552 3611 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3509 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3392 1877 66 VNPT-AS-VN VNPT Corp, VN 4766 2536 11252 602 KIXS-AS-KR Korea Telecom, KR 9498 2526 499 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2275 849 418 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 45090 2180 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 7582 10612 2927 AMAZON-02, US 11492 4586 304 543 CABLEONE, US 7155 3898 265 32 VIASAT-SP-BACKBONE, US 22773 3749 3060 338 ASN-CXA-ALL-CCI-22773-RDC, US 16625 3572 1868 2552 AKAMAI-AS, US 6327 3525 1320 63 SHAW, CA 749 3055 50656 2322 DNIC-AS-00749, US 30036 2601 372 270 MEDIACOM-ENTERPRISE-BUSINESS, US 7018 2578 24058 1553 ATT-INTERNET4, US 396982 2562 3481 356 GOOGLE-CLOUD-PLATFORM, US Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6936 1730 144 UNI2-AS, ES 9121 6716 1692 17 TTNET, TR 20940 4115 3400 182 AKAMAI-ASN1, NL 39891 4010 234 47 ALJAWWALSTC-AS, SA 8551 3981 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2954 2290 913 ROSTELECOM-AS, RU 9009 2625 252 1353 M247, RO 6849 2374 339 20 UKRTELNET, UA 34984 2241 357 614 TELLCOM-AS, TR 47331 2203 337 1671 TTNET, TR Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10821 3347 601 Uninet S.A. de C.V., MX 10620 3476 511 837 Telmex Colombia S.A., CO 11830 2300 369 64 Instituto Costarricense de Electricidad 13999 2112 343 548 Mega Cable, S.A. de C.V., MX 28573 1336 2328 260 Claro NXT Telecomunicacoes Ltda, BR 6503 1293 338 521 Axtel, S.A.B. de C.V., MX 3816 1286 726 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 11664 1112 182 474 Techtel LMDS Comunicaciones Interactiva 6147 1087 369 22 Telefonica del Peru S.A.A., PE 26615 992 2466 43 TIM SA, BR Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1572 393 21 LINKdotNET-AS, EG 24835 1545 521 31 RAYA-AS, EG 36992 1354 1520 270 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1011 68 37 ORANGE-COTE-IVOIRE, CI 36935 828 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 527 53 43 WANANCHI-, KE 37342 494 32 1 MOVITEL, MZ 23889 400 231 14 MauritiusTelecom, MU Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10821 3347 601 Uninet S.A. de C.V., MX 9808 9132 8884 50 CHINAMOBILE-CN China Mobile Communicati 16509 7582 10612 2927 AMAZON-02, US 12479 6936 1730 144 UNI2-AS, ES 9121 6716 1692 17 TTNET, TR 7545 5946 786 695 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4872 4192 75 ERX-CERNET-BKB China Education and Rese 11492 4586 304 543 CABLEONE, US 20940 4115 3400 182 AKAMAI-ASN1, NL 39891 4010 234 47 ALJAWWALSTC-AS, SA Complete listing at https://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9132 9082 CHINAMOBILE-CN China Mobile Communications Grou 12479 6936 6792 UNI2-AS, ES 9121 6716 6699 TTNET, TR 7545 5946 5251 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4872 4797 ERX-CERNET-BKB China Education and Research Net 16509 7582 4655 AMAZON-02, US 11492 4586 4043 CABLEONE, US 39891 4010 3963 ALJAWWALSTC-AS, SA 8551 3981 3943 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 20940 4115 3933 AKAMAI-ASN1, NL Complete listing at https://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.12.76.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.14.115.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 25674 UNALLOCATED 8.19.146.0/24 3356 LEVEL3, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US Complete listing at https://thyme.apnic.net/current/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://thyme.apnic.net/current/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.181.240.0/24 Origin: 399613 UNASSIGNED 23.181.240.0/24 Transit: 11992 CENTENNIAL-, PR 27.100.7.0/24 Origin: 56096 UNASSIGNED 27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet Complete listing at https://thyme.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:13 /10:39 /11:100 /12:295 /13:587 /14:1199 /15:2046 /16:13522 /17:8347 /18:13980 /19:25193 /20:44380 /21:52336 /22:110089 /23:97970 /24:544024 /25:828 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5949 6936 UNI2-AS, ES 9121 5872 6716 TTNET, TR 8151 4772 10821 Uninet S.A. de C.V., MX 11492 3494 4586 CABLEONE, US 8551 3445 3981 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3333 3525 SHAW, CA 39891 3193 4010 ALJAWWALSTC-AS, SA 7155 2987 3898 VIASAT-SP-BACKBONE, US 22773 2773 3749 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2257 2601 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1908 2:1027 3:166 4:5 5:4024 6:120 7:5 8:1583 9:1 11:173 12:1620 13:352 14:2377 15:287 16:71 17:363 18:381 20:239 21:4 22:188 23:6018 24:2467 25:6 27:2701 29:19 31:2484 32:93 34:8 35:95 36:1791 37:4532 38:3751 39:773 40:144 41:3944 42:1184 43:2249 44:300 45:16312 46:4173 47:377 49:1721 50:1925 51:244 52:1498 54:397 55:845 56:8 57:78 58:1795 59:1163 60:1006 61:2417 62:2571 63:1957 64:5624 65:2328 66:4826 67:3006 68:1379 69:4156 70:1296 71:679 72:3001 74:2647 75:1476 76:600 77:2246 78:3969 79:3152 80:2032 81:1814 82:1493 83:1207 84:1469 85:3738 86:729 87:1923 88:2838 89:3442 90:551 91:7603 92:2033 93:2554 94:3524 95:4828 96:1337 97:348 98:1174 99:739 100:69 101:1072 102:2418 103:30324 104:4544 105:479 106:890 107:2542 108:921 109:4330 110:2017 111:3316 112:2049 113:1560 114:1584 115:2026 116:1903 117:2479 118:2325 119:1857 120:1710 121:1112 122:2585 123:2116 124:1555 125:2191 128:1254 129:979 130:972 131:2035 132:848 133:378 134:1914 135:291 136:884 137:909 138:2526 139:1515 140:1110 141:1481 142:1419 143:1397 144:1197 145:351 146:1878 147:1537 148:2257 149:1836 150:873 151:1145 152:1830 153:455 154:3847 155:1429 156:1615 157:1298 158:1041 159:2209 160:2591 161:1389 162:3505 163:1448 164:1674 165:1627 166:831 167:1706 168:3834 169:907 170:4532 171:852 172:3478 173:3106 174:1036 175:1152 176:3623 177:4785 178:3529 179:2122 180:2352 181:3349 182:3243 183:1935 184:2352 185:19903 186:4551 187:3968 188:4016 189:3446 190:9071 191:1414 192:11001 193:8771 194:7192 195:5103 196:2984 197:2483 198:6005 199:6066 200:7614 201:5833 202:10573 203:10060 204:4599 205:3479 206:3861 207:3400 208:4098 209:4812 210:4394 211:2440 212:4036 213:3512 214:1095 215:53 216:6527 217:2621 218:1290 219:572 220:2052 221:926 222:840 223:2020 End of report

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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 05 Nov '22

05 Nov '22

This is an automated weekly mailing describing the state of the Global IPv4 Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG. Daily listings are sent to bgp-stats(a)lists.apnic.net. For historical data, please see https://thyme.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. IPv4 Routing Table Report 04:00 +10GMT Sat 05 Nov, 2022 BGP Table (Global) as seen in Japan. Report Website: https://thyme.apnic.net Detailed Analysis: https://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 914187 Prefixes after maximum aggregation (per Origin AS): 345210 Deaggregation factor: 2.65 Unique aggregates announced (without unneeded subnets): 441304 Total ASes present in the Internet Routing Table: 73782 Prefixes per ASN: 12.39 Origin-only ASes present in the Internet Routing Table: 63404 Origin ASes announcing only one prefix: 26064 Transit ASes present in the Internet Routing Table: 10378 Transit-only ASes present in the Internet Routing Table: 408 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 55 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 1006 Number of instances of unregistered ASNs: 1008 Number of 32-bit ASNs allocated by the RIRs: 40572 Number of 32-bit ASNs visible in the Routing Table: 33622 Prefixes from 32-bit ASNs in the Routing Table: 162808 Number of bogon 32-bit ASNs visible in the Routing Table: 12 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 510 Number of addresses announced to Internet: 3064630528 Equivalent to 182 /8s, 170 /16s and 141 /24s Percentage of available address space announced: 82.8 Percentage of allocated address space announced: 82.8 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 310253 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 238910 Total APNIC prefixes after maximum aggregation: 68007 APNIC Deaggregation factor: 3.51 Prefixes being announced from the APNIC address blocks: 233889 Unique aggregates announced from the APNIC address blocks: 96892 APNIC Region origin ASes present in the Internet Routing Table: 13077 APNIC Prefixes per ASN: 17.89 APNIC Region origin ASes announcing only one prefix: 3778 APNIC Region transit ASes present in the Internet Routing Table: 1756 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 33 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8324 Number of APNIC addresses announced to Internet: 773861504 Equivalent to 46 /8s, 32 /16s and 48 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-151865 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 267032 Total ARIN prefixes after maximum aggregation: 121841 ARIN Deaggregation factor: 2.19 Prefixes being announced from the ARIN address blocks: 268396 Unique aggregates announced from the ARIN address blocks: 129002 ARIN Region origin ASes present in the Internet Routing Table: 19070 ARIN Prefixes per ASN: 14.07 ARIN Region origin ASes announcing only one prefix: 6977 ARIN Region transit ASes present in the Internet Routing Table: 1928 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4667 Number of ARIN addresses announced to Internet: 1290101248 Equivalent to 76 /8s, 229 /16s and 98 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-401308 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 261799 Total RIPE prefixes after maximum aggregation: 120887 RIPE Deaggregation factor: 2.17 Prefixes being announced from the RIPE address blocks: 258585 Unique aggregates announced from the RIPE address blocks: 154650 RIPE Region origin ASes present in the Internet Routing Table: 28150 RIPE Prefixes per ASN: 9.19 RIPE Region origin ASes announcing only one prefix: 12004 RIPE Region transit ASes present in the Internet Routing Table: 3954 Average RIPE Region AS path length visible: 4.3 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10852 Number of RIPE addresses announced to Internet: 716490624 Equivalent to 42 /8s, 180 /16s and 199 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 116846 Total LACNIC prefixes after maximum aggregation: 28114 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 116298 Unique aggregates announced from the LACNIC address blocks: 48449 LACNIC Region origin ASes present in the Internet Routing Table: 10985 LACNIC Prefixes per ASN: 10.59 LACNIC Region origin ASes announcing only one prefix: 2708 LACNIC Region transit ASes present in the Internet Routing Table: 2229 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 55 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8750 Number of LACNIC addresses announced to Internet: 175917056 Equivalent to 10 /8s, 124 /16s and 72 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 28594 Total AfriNIC prefixes after maximum aggregation: 5604 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 36509 Unique aggregates announced from the AfriNIC address blocks: 11890 AfriNIC Region origin ASes present in the Internet Routing Table: 1702 AfriNIC Prefixes per ASN: 21.45 AfriNIC Region origin ASes announcing only one prefix: 597 AfriNIC Region transit ASes present in the Internet Routing Table: 332 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1029 Number of AfriNIC addresses announced to Internet: 107975168 Equivalent to 6 /8s, 111 /16s and 146 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 9092 8884 50 CHINAMOBILE-CN China Mobile Communicati 7545 5942 786 696 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4879 4192 75 ERX-CERNET-BKB China Education and Rese 7552 3616 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3498 1043 62 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3397 1877 66 VNPT-AS-VN VNPT Corp, VN 4766 2531 11252 600 KIXS-AS-KR Korea Telecom, KR 9498 2498 499 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2259 850 411 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 45090 2180 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 7561 10612 2897 AMAZON-02, US 11492 4585 304 549 CABLEONE, US 7155 3898 265 32 VIASAT-SP-BACKBONE, US 22773 3759 3061 341 ASN-CXA-ALL-CCI-22773-RDC, US 16625 3562 1864 2548 AKAMAI-AS, US 6327 3517 1320 63 SHAW, CA 749 3029 50727 2287 DNIC-AS-00749, US 7018 2609 24057 1569 ATT-INTERNET4, US 30036 2599 371 285 MEDIACOM-ENTERPRISE-BUSINESS, US 396982 2560 3480 351 GOOGLE-CLOUD-PLATFORM, US Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6920 1730 144 UNI2-AS, ES 9121 6841 1692 17 TTNET, TR 20940 4115 3400 183 AKAMAI-ASN1, NL 39891 4010 234 47 ALJAWWALSTC-AS, SA 8551 3981 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2956 2290 913 ROSTELECOM-AS, RU 9009 2628 252 1351 M247, RO 6849 2331 339 20 UKRTELNET, UA 34984 2241 357 615 TELLCOM-AS, TR 47331 2078 323 1581 TTNET, TR Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10785 3345 604 Uninet S.A. de C.V., MX 10620 3472 510 839 Telmex Colombia S.A., CO 11830 2300 369 64 Instituto Costarricense de Electricidad 13999 2099 341 544 Mega Cable, S.A. de C.V., MX 28573 1335 2328 261 Claro NXT Telecomunicacoes Ltda, BR 6503 1295 338 521 Axtel, S.A.B. de C.V., MX 3816 1286 722 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 11664 1110 182 471 Techtel LMDS Comunicaciones Interactiva 6147 1083 369 22 Telefonica del Peru S.A.A., PE 26615 992 2466 43 TIM SA, BR Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1575 393 21 LINKdotNET-AS, EG 24835 1545 521 31 RAYA-AS, EG 36992 1354 1520 270 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 992 68 32 ORANGE-COTE-IVOIRE, CI 36935 831 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 526 53 42 WANANCHI-, KE 37342 490 32 1 MOVITEL, MZ 23889 400 231 14 MauritiusTelecom, MU Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10785 3345 604 Uninet S.A. de C.V., MX 9808 9092 8884 50 CHINAMOBILE-CN China Mobile Communicati 16509 7561 10612 2897 AMAZON-02, US 12479 6920 1730 144 UNI2-AS, ES 9121 6841 1692 17 TTNET, TR 7545 5942 786 696 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4879 4192 75 ERX-CERNET-BKB China Education and Rese 11492 4585 304 549 CABLEONE, US 20940 4115 3400 183 AKAMAI-ASN1, NL 39891 4010 234 47 ALJAWWALSTC-AS, SA Complete listing at https://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9092 9042 CHINAMOBILE-CN China Mobile Communications Grou 9121 6841 6824 TTNET, TR 12479 6920 6776 UNI2-AS, ES 7545 5942 5246 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4879 4804 ERX-CERNET-BKB China Education and Research Net 16509 7561 4664 AMAZON-02, US 11492 4585 4036 CABLEONE, US 39891 4010 3963 ALJAWWALSTC-AS, SA 8551 3981 3943 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 20940 4115 3932 AKAMAI-ASN1, NL Complete listing at https://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.12.76.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.14.115.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 25674 UNALLOCATED 8.19.146.0/24 3356 LEVEL3, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US Complete listing at https://thyme.apnic.net/current/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://thyme.apnic.net/current/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.181.240.0/24 Origin: 399613 UNASSIGNED 23.181.240.0/24 Transit: 11992 CENTENNIAL-, PR 27.100.7.0/24 Origin: 56096 UNASSIGNED 27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet Complete listing at https://thyme.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:13 /10:39 /11:100 /12:295 /13:588 /14:1198 /15:2047 /16:13533 /17:8355 /18:13983 /19:25166 /20:44387 /21:52270 /22:109998 /23:97774 /24:543619 /25:806 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 9121 5987 6841 TTNET, TR 12479 5925 6920 UNI2-AS, ES 8151 4738 10785 Uninet S.A. de C.V., MX 11492 3492 4585 CABLEONE, US 8551 3445 3981 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3325 3517 SHAW, CA 39891 3193 4010 ALJAWWALSTC-AS, SA 7155 2987 3898 VIASAT-SP-BACKBONE, US 22773 2780 3759 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2255 2599 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1907 2:1017 3:166 4:5 5:4013 6:117 7:5 8:1597 9:1 11:173 12:1619 13:350 14:2382 15:280 16:69 17:360 18:373 20:236 21:4 22:188 23:6002 24:2454 25:6 27:2703 29:19 31:2467 32:93 34:7 35:95 36:1794 37:4498 38:3750 39:770 40:144 41:3931 42:1183 43:2252 44:301 45:16308 46:4201 47:375 49:1720 50:1924 51:244 52:1496 54:398 55:846 56:8 57:78 58:1790 59:1163 60:1002 61:2409 62:2590 63:1958 64:5622 65:2324 66:4831 67:2995 68:1379 69:4146 70:1297 71:679 72:2998 74:2648 75:1474 76:600 77:2226 78:3961 79:3149 80:2047 81:1830 82:1477 83:1216 84:1449 85:3733 86:730 87:1917 88:2842 89:3402 90:550 91:7593 92:2040 93:2555 94:3517 95:4810 96:1349 97:350 98:1172 99:739 100:69 101:1068 102:2378 103:30393 104:4555 105:480 106:894 107:2553 108:911 109:4316 110:2020 111:3319 112:2050 113:1560 114:1530 115:2029 116:1901 117:2474 118:2325 119:1851 120:1707 121:1092 122:2568 123:2115 124:1553 125:2180 128:1261 129:982 130:976 131:2022 132:845 133:378 134:1911 135:291 136:880 137:907 138:2508 139:1516 140:1120 141:1464 142:1398 143:1404 144:1196 145:354 146:1879 147:1533 148:2265 149:1831 150:874 151:1139 152:1831 153:453 154:3829 155:1438 156:1621 157:1297 158:1040 159:2202 160:2566 161:1385 162:3521 163:1436 164:1688 165:1636 166:823 167:1714 168:3855 169:903 170:4546 171:851 172:3479 173:3110 174:1032 175:1161 176:3602 177:4793 178:3514 179:2131 180:2348 181:3361 182:3238 183:1932 184:2361 185:19878 186:4548 187:3986 188:3977 189:3447 190:9052 191:1434 192:11015 193:8760 194:7175 195:5087 196:2983 197:2470 198:6005 199:6068 200:7613 201:5798 202:10557 203:10053 204:4598 205:3493 206:3921 207:3419 208:4092 209:4788 210:4395 211:2441 212:4038 213:3507 214:1100 215:53 216:6536 217:2630 218:1289 219:573 220:2051 221:925 222:839 223:2015 End of report

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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 29 Oct '22

29 Oct '22

This is an automated weekly mailing describing the state of the Global IPv4 Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG. Daily listings are sent to bgp-stats(a)lists.apnic.net. For historical data, please see https://thyme.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. IPv4 Routing Table Report 04:00 +10GMT Sat 29 Oct, 2022 BGP Table (Global) as seen in Japan. Report Website: https://thyme.apnic.net Detailed Analysis: https://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 913431 Prefixes after maximum aggregation (per Origin AS): 344677 Deaggregation factor: 2.65 Unique aggregates announced (without unneeded subnets): 440775 Total ASes present in the Internet Routing Table: 73756 Prefixes per ASN: 12.38 Origin-only ASes present in the Internet Routing Table: 63346 Origin ASes announcing only one prefix: 26009 Transit ASes present in the Internet Routing Table: 10410 Transit-only ASes present in the Internet Routing Table: 411 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 55 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 1068 Number of instances of unregistered ASNs: 1071 Number of 32-bit ASNs allocated by the RIRs: 40510 Number of 32-bit ASNs visible in the Routing Table: 33589 Prefixes from 32-bit ASNs in the Routing Table: 162188 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 527 Number of addresses announced to Internet: 3064049024 Equivalent to 182 /8s, 161 /16s and 173 /24s Percentage of available address space announced: 82.8 Percentage of allocated address space announced: 82.8 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 310290 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 238504 Total APNIC prefixes after maximum aggregation: 67891 APNIC Deaggregation factor: 3.51 Prefixes being announced from the APNIC address blocks: 233487 Unique aggregates announced from the APNIC address blocks: 96685 APNIC Region origin ASes present in the Internet Routing Table: 13050 APNIC Prefixes per ASN: 17.89 APNIC Region origin ASes announcing only one prefix: 3749 APNIC Region transit ASes present in the Internet Routing Table: 1763 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 33 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8296 Number of APNIC addresses announced to Internet: 773644800 Equivalent to 46 /8s, 28 /16s and 226 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-151865 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 266822 Total ARIN prefixes after maximum aggregation: 121568 ARIN Deaggregation factor: 2.19 Prefixes being announced from the ARIN address blocks: 268075 Unique aggregates announced from the ARIN address blocks: 128894 ARIN Region origin ASes present in the Internet Routing Table: 19061 ARIN Prefixes per ASN: 14.06 ARIN Region origin ASes announcing only one prefix: 6959 ARIN Region transit ASes present in the Internet Routing Table: 1924 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4661 Number of ARIN addresses announced to Internet: 1289996800 Equivalent to 76 /8s, 227 /16s and 202 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-401308 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 261940 Total RIPE prefixes after maximum aggregation: 120746 RIPE Deaggregation factor: 2.17 Prefixes being announced from the RIPE address blocks: 258812 Unique aggregates announced from the RIPE address blocks: 154488 RIPE Region origin ASes present in the Internet Routing Table: 28152 RIPE Prefixes per ASN: 9.19 RIPE Region origin ASes announcing only one prefix: 11998 RIPE Region transit ASes present in the Internet Routing Table: 3966 Average RIPE Region AS path length visible: 4.2 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10864 Number of RIPE addresses announced to Internet: 716309888 Equivalent to 42 /8s, 178 /16s and 5 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 116612 Total LACNIC prefixes after maximum aggregation: 28105 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 116120 Unique aggregates announced from the LACNIC address blocks: 48367 LACNIC Region origin ASes present in the Internet Routing Table: 10985 LACNIC Prefixes per ASN: 10.57 LACNIC Region origin ASes announcing only one prefix: 2707 LACNIC Region transit ASes present in the Internet Routing Table: 2246 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 55 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8744 Number of LACNIC addresses announced to Internet: 175875840 Equivalent to 10 /8s, 123 /16s and 167 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 28485 Total AfriNIC prefixes after maximum aggregation: 5578 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 36410 Unique aggregates announced from the AfriNIC address blocks: 11915 AfriNIC Region origin ASes present in the Internet Routing Table: 1698 AfriNIC Prefixes per ASN: 21.44 AfriNIC Region origin ASes announcing only one prefix: 596 AfriNIC Region transit ASes present in the Internet Routing Table: 326 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 30 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1024 Number of AfriNIC addresses announced to Internet: 107920128 Equivalent to 6 /8s, 110 /16s and 187 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 9074 8884 50 CHINAMOBILE-CN China Mobile Communicati 7545 5937 786 695 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4726 4192 75 ERX-CERNET-BKB China Education and Rese 7552 3614 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3500 1042 61 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3390 1877 66 VNPT-AS-VN VNPT Corp, VN 4766 2533 11252 600 KIXS-AS-KR Korea Telecom, KR 9498 2491 499 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2243 851 409 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 45090 2179 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 7449 10588 2892 AMAZON-02, US 11492 4631 306 502 CABLEONE, US 7155 3898 265 32 VIASAT-SP-BACKBONE, US 22773 3733 3057 322 ASN-CXA-ALL-CCI-22773-RDC, US 16625 3533 1843 2542 AKAMAI-AS, US 6327 3516 1320 63 SHAW, CA 749 3029 50727 2287 DNIC-AS-00749, US 7018 2612 24153 1578 ATT-INTERNET4, US 30036 2606 372 243 MEDIACOM-ENTERPRISE-BUSINESS, US 396982 2558 3480 349 GOOGLE-CLOUD-PLATFORM, US Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6919 1730 144 UNI2-AS, ES 9121 6835 1692 17 TTNET, TR 20940 4108 3400 182 AKAMAI-ASN1, NL 39891 4010 234 47 ALJAWWALSTC-AS, SA 8551 3980 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2950 2290 913 ROSTELECOM-AS, RU 9009 2625 252 1348 M247, RO 6849 2439 339 20 UKRTELNET, UA 34984 2240 357 614 TELLCOM-AS, TR 47331 2077 322 1580 TTNET, TR Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10856 3298 605 Uninet S.A. de C.V., MX 10620 3471 510 838 Telmex Colombia S.A., CO 11830 2295 369 64 Instituto Costarricense de Electricidad 13999 2091 341 548 Mega Cable, S.A. de C.V., MX 28573 1334 2328 263 Claro NXT Telecomunicacoes Ltda, BR 6503 1295 338 521 Axtel, S.A.B. de C.V., MX 3816 1285 722 152 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 11664 1090 181 467 Techtel LMDS Comunicaciones Interactiva 6147 1087 369 22 Telefonica del Peru S.A.A., PE 26615 989 2466 43 TIM SA, BR Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1575 393 21 LINKdotNET-AS, EG 24835 1545 521 31 RAYA-AS, EG 36992 1350 1519 270 ETISALAT-MISR, EG 36903 1248 550 99 MT-MPLS, MA 29571 992 68 32 ORANGE-COTE-IVOIRE, CI 36935 815 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 526 53 42 WANANCHI-, KE 37342 495 32 1 MOVITEL, MZ 23889 400 231 14 MauritiusTelecom, MU Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10856 3298 605 Uninet S.A. de C.V., MX 9808 9074 8884 50 CHINAMOBILE-CN China Mobile Communicati 16509 7449 10588 2892 AMAZON-02, US 12479 6919 1730 144 UNI2-AS, ES 9121 6835 1692 17 TTNET, TR 7545 5937 786 695 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4726 4192 75 ERX-CERNET-BKB China Education and Rese 11492 4631 306 502 CABLEONE, US 20940 4108 3400 182 AKAMAI-ASN1, NL 39891 4010 234 47 ALJAWWALSTC-AS, SA Complete listing at https://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9074 9024 CHINAMOBILE-CN China Mobile Communications Grou 9121 6835 6818 TTNET, TR 12479 6919 6775 UNI2-AS, ES 7545 5937 5242 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4726 4651 ERX-CERNET-BKB China Education and Research Net 16509 7449 4557 AMAZON-02, US 11492 4631 4129 CABLEONE, US 39891 4010 3963 ALJAWWALSTC-AS, SA 8551 3980 3942 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 20940 4108 3926 AKAMAI-ASN1, NL Complete listing at https://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.12.76.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.14.115.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 25674 UNALLOCATED 8.19.146.0/24 3356 LEVEL3, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US Complete listing at https://thyme.apnic.net/current/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://thyme.apnic.net/current/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.158.240.0/24 Origin: 13465 UNASSIGNED 23.158.240.0/24 Transit: 33185 HIVE-DATA-CENTER, CA 23.181.240.0/24 Origin: 399613 UNASSIGNED 23.181.240.0/24 Transit: 11992 CENTENNIAL-, PR 24.48.128.0/19 Origin: 29866 OPTICALTEL, US 24.48.128.0/19 Transit: 3257 GTT-BACKBONE GTT, US Complete listing at https://thyme.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:13 /10:39 /11:100 /12:294 /13:589 /14:1202 /15:2045 /16:13495 /17:8343 /18:13975 /19:25200 /20:44384 /21:52211 /22:109833 /23:97775 /24:543132 /25:785 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 9121 5981 6835 TTNET, TR 12479 5926 6919 UNI2-AS, ES 8151 4819 10856 Uninet S.A. de C.V., MX 11492 3537 4631 CABLEONE, US 8551 3444 3980 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3324 3516 SHAW, CA 39891 3193 4010 ALJAWWALSTC-AS, SA 7155 2988 3898 VIASAT-SP-BACKBONE, US 22773 2767 3733 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2302 2439 UKRTELNET, UA Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1905 2:1015 3:167 4:5 5:3998 6:116 7:5 8:1598 9:1 11:173 12:1621 13:354 14:2341 15:277 16:69 17:359 18:346 20:241 21:4 22:188 23:5980 24:2466 25:6 27:2710 29:19 31:2453 32:94 34:7 35:92 36:1799 37:4498 38:3742 39:753 40:159 41:3908 42:1180 43:2300 44:297 45:16294 46:4208 47:375 49:1724 50:1931 51:244 52:1500 54:398 55:843 56:8 57:78 58:1790 59:1164 60:996 61:2404 62:2583 63:1968 64:5628 65:2328 66:4853 67:2980 68:1379 69:4157 70:1300 71:679 72:2971 74:2652 75:1473 76:600 77:2251 78:3964 79:3146 80:2041 81:1823 82:1521 83:1218 84:1438 85:3734 86:731 87:1918 88:2843 89:3423 90:549 91:7595 92:2068 93:2549 94:3546 95:4822 96:1353 97:346 98:1169 99:739 100:69 101:1068 102:2336 103:30323 104:4519 105:477 106:890 107:2539 108:905 109:4324 110:2003 111:3323 112:2050 113:1551 114:1520 115:2023 116:1922 117:2475 118:2321 119:1849 120:1731 121:1090 122:2565 123:2117 124:1553 125:2183 128:1262 129:986 130:975 131:2015 132:846 133:379 134:1889 135:290 136:876 137:900 138:2496 139:1515 140:1127 141:1467 142:1402 143:1402 144:1203 145:353 146:1872 147:1536 148:2260 149:1830 150:875 151:1135 152:1824 153:469 154:3821 155:1428 156:1638 157:1302 158:1045 159:2206 160:2562 161:1383 162:3503 163:1433 164:1684 165:1637 166:809 167:1718 168:3815 169:903 170:4536 171:851 172:3463 173:3109 174:1041 175:1155 176:3595 177:4760 178:3528 179:2121 180:2341 181:3319 182:3238 183:1942 184:2356 185:19846 186:4531 187:3951 188:4047 189:3473 190:8984 191:1432 192:10987 193:8755 194:7175 195:5089 196:2976 197:2473 198:6008 199:6067 200:7605 201:5818 202:10544 203:10038 204:4601 205:3497 206:3902 207:3420 208:4092 209:4800 210:4336 211:2437 212:4055 213:3577 214:1082 215:53 216:6486 217:2624 218:1292 219:576 220:2045 221:924 222:827 223:2014 End of report

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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 22 Oct '22

22 Oct '22

This is an automated weekly mailing describing the state of the Global IPv4 Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG. Daily listings are sent to bgp-stats(a)lists.apnic.net. For historical data, please see https://thyme.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. IPv4 Routing Table Report 04:00 +10GMT Sat 22 Oct, 2022 BGP Table (Global) as seen in Japan. Report Website: https://thyme.apnic.net Detailed Analysis: https://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 913066 Prefixes after maximum aggregation (per Origin AS): 344590 Deaggregation factor: 2.65 Unique aggregates announced (without unneeded subnets): 440326 Total ASes present in the Internet Routing Table: 73756 Prefixes per ASN: 12.38 Origin-only ASes present in the Internet Routing Table: 63346 Origin ASes announcing only one prefix: 25997 Transit ASes present in the Internet Routing Table: 10410 Transit-only ASes present in the Internet Routing Table: 406 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 55 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 1071 Number of instances of unregistered ASNs: 1074 Number of 32-bit ASNs allocated by the RIRs: 40454 Number of 32-bit ASNs visible in the Routing Table: 33551 Prefixes from 32-bit ASNs in the Routing Table: 161990 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 527 Number of addresses announced to Internet: 3064300672 Equivalent to 182 /8s, 165 /16s and 132 /24s Percentage of available address space announced: 82.8 Percentage of allocated address space announced: 82.8 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 310145 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 238444 Total APNIC prefixes after maximum aggregation: 67879 APNIC Deaggregation factor: 3.51 Prefixes being announced from the APNIC address blocks: 233482 Unique aggregates announced from the APNIC address blocks: 96704 APNIC Region origin ASes present in the Internet Routing Table: 13033 APNIC Prefixes per ASN: 17.91 APNIC Region origin ASes announcing only one prefix: 3749 APNIC Region transit ASes present in the Internet Routing Table: 1754 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 27 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8277 Number of APNIC addresses announced to Internet: 773734912 Equivalent to 46 /8s, 30 /16s and 66 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-151865 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 266668 Total ARIN prefixes after maximum aggregation: 121596 ARIN Deaggregation factor: 2.19 Prefixes being announced from the ARIN address blocks: 267868 Unique aggregates announced from the ARIN address blocks: 128736 ARIN Region origin ASes present in the Internet Routing Table: 19057 ARIN Prefixes per ASN: 14.06 ARIN Region origin ASes announcing only one prefix: 6949 ARIN Region transit ASes present in the Internet Routing Table: 1929 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4649 Number of ARIN addresses announced to Internet: 1290070784 Equivalent to 76 /8s, 228 /16s and 235 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-401308 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 261853 Total RIPE prefixes after maximum aggregation: 120667 RIPE Deaggregation factor: 2.17 Prefixes being announced from the RIPE address blocks: 258723 Unique aggregates announced from the RIPE address blocks: 154172 RIPE Region origin ASes present in the Internet Routing Table: 28174 RIPE Prefixes per ASN: 9.18 RIPE Region origin ASes announcing only one prefix: 12012 RIPE Region transit ASes present in the Internet Routing Table: 3975 Average RIPE Region AS path length visible: 4.2 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10855 Number of RIPE addresses announced to Internet: 716370304 Equivalent to 42 /8s, 178 /16s and 241 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 116487 Total LACNIC prefixes after maximum aggregation: 28055 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 116038 Unique aggregates announced from the LACNIC address blocks: 48355 LACNIC Region origin ASes present in the Internet Routing Table: 10983 LACNIC Prefixes per ASN: 10.57 LACNIC Region origin ASes announcing only one prefix: 2685 LACNIC Region transit ASes present in the Internet Routing Table: 2246 Average LACNIC Region AS path length visible: 4.9 Max LACNIC Region AS path length visible: 55 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8746 Number of LACNIC addresses announced to Internet: 175887616 Equivalent to 10 /8s, 123 /16s and 213 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 28543 Total AfriNIC prefixes after maximum aggregation: 5600 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 36428 Unique aggregates announced from the AfriNIC address blocks: 11935 AfriNIC Region origin ASes present in the Internet Routing Table: 1699 AfriNIC Prefixes per ASN: 21.44 AfriNIC Region origin ASes announcing only one prefix: 602 AfriNIC Region transit ASes present in the Internet Routing Table: 325 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1024 Number of AfriNIC addresses announced to Internet: 107936768 Equivalent to 6 /8s, 110 /16s and 252 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 9071 8884 50 CHINAMOBILE-CN China Mobile Communicati 7545 5928 786 694 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4726 4192 75 ERX-CERNET-BKB China Education and Rese 7552 3594 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3501 1042 61 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3389 1877 66 VNPT-AS-VN VNPT Corp, VN 4766 2533 11252 600 KIXS-AS-KR Korea Telecom, KR 9498 2491 499 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2241 851 415 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 45090 2179 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 7419 10586 2886 AMAZON-02, US 11492 4612 305 508 CABLEONE, US 7155 3899 265 32 VIASAT-SP-BACKBONE, US 22773 3771 3065 348 ASN-CXA-ALL-CCI-22773-RDC, US 16625 3544 1851 2544 AKAMAI-AS, US 6327 3504 1320 63 SHAW, CA 749 3027 50696 2294 DNIC-AS-00749, US 7018 2639 24156 1591 ATT-INTERNET4, US 30036 2600 367 258 MEDIACOM-ENTERPRISE-BUSINESS, US 396982 2554 3479 346 GOOGLE-CLOUD-PLATFORM, US Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6909 1730 144 UNI2-AS, ES 9121 6834 1692 17 TTNET, TR 20940 4111 3400 182 AKAMAI-ASN1, NL 39891 4010 234 47 ALJAWWALSTC-AS, SA 8551 3982 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2946 2290 913 ROSTELECOM-AS, RU 9009 2623 252 1348 M247, RO 6849 2477 339 20 UKRTELNET, UA 34984 2243 357 616 TELLCOM-AS, TR 47331 2076 322 1579 TTNET, TR Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10744 3314 605 Uninet S.A. de C.V., MX 10620 3469 510 837 Telmex Colombia S.A., CO 11830 2301 369 64 Instituto Costarricense de Electricidad 13999 2075 338 538 Mega Cable, S.A. de C.V., MX 28573 1337 2330 260 Claro NXT Telecomunicacoes Ltda, BR 6503 1294 338 520 Axtel, S.A.B. de C.V., MX 3816 1285 722 152 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1089 369 22 Telefonica del Peru S.A.A., PE 11664 1089 181 466 Techtel LMDS Comunicaciones Interactiva 26615 986 2466 43 TIM SA, BR Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1574 393 21 LINKdotNET-AS, EG 24835 1518 521 31 RAYA-AS, EG 36992 1350 1519 270 ETISALAT-MISR, EG 36903 1260 550 99 MT-MPLS, MA 29571 1014 68 32 ORANGE-COTE-IVOIRE, CI 36935 815 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 526 53 42 WANANCHI-, KE 37342 486 32 1 MOVITEL, MZ 23889 400 231 14 MauritiusTelecom, MU Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10744 3314 605 Uninet S.A. de C.V., MX 9808 9071 8884 50 CHINAMOBILE-CN China Mobile Communicati 16509 7419 10586 2886 AMAZON-02, US 12479 6909 1730 144 UNI2-AS, ES 9121 6834 1692 17 TTNET, TR 7545 5928 786 694 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4726 4192 75 ERX-CERNET-BKB China Education and Rese 11492 4612 305 508 CABLEONE, US 20940 4111 3400 182 AKAMAI-ASN1, NL 39891 4010 234 47 ALJAWWALSTC-AS, SA Complete listing at https://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9071 9021 CHINAMOBILE-CN China Mobile Communications Grou 9121 6834 6817 TTNET, TR 12479 6909 6765 UNI2-AS, ES 7545 5928 5234 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4726 4651 ERX-CERNET-BKB China Education and Research Net 16509 7419 4533 AMAZON-02, US 11492 4612 4104 CABLEONE, US 39891 4010 3963 ALJAWWALSTC-AS, SA 8551 3982 3944 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 20940 4111 3929 AKAMAI-ASN1, NL Complete listing at https://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.12.76.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.14.115.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.19.146.0/24 3356 LEVEL3, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US Complete listing at https://thyme.apnic.net/current/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://thyme.apnic.net/current/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.158.240.0/24 Origin: 13465 UNASSIGNED 23.158.240.0/24 Transit: 33185 HIVE-DATA-CENTER, CA 23.181.240.0/24 Origin: 399613 UNASSIGNED 23.181.240.0/24 Transit: 11992 CENTENNIAL-, PR 24.48.128.0/19 Origin: 29866 OPTICALTEL, US 24.48.128.0/19 Transit: 3257 GTT-BACKBONE GTT, US Complete listing at https://thyme.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:13 /10:39 /11:100 /12:294 /13:589 /14:1202 /15:2046 /16:13513 /17:8343 /18:13980 /19:25194 /20:44406 /21:52220 /22:109690 /23:97714 /24:542921 /25:786 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 9121 5980 6834 TTNET, TR 12479 5918 6909 UNI2-AS, ES 8151 4740 10744 Uninet S.A. de C.V., MX 11492 3519 4612 CABLEONE, US 8551 3446 3982 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3312 3504 SHAW, CA 39891 3193 4010 ALJAWWALSTC-AS, SA 7155 2988 3899 VIASAT-SP-BACKBONE, US 22773 2782 3771 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2340 2477 UKRTELNET, UA Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1908 2:1029 3:166 4:5 5:3945 6:116 7:5 8:1591 9:1 11:173 12:1623 13:347 14:2375 15:275 16:69 17:360 18:343 20:241 21:4 22:188 23:5967 24:2473 25:6 27:2713 29:19 31:2452 32:94 34:7 35:90 36:1867 37:4484 38:3650 39:753 40:159 41:3969 42:1181 43:2298 44:296 45:16261 46:4225 47:375 49:1719 50:1930 51:242 52:1500 54:394 55:838 56:8 57:78 58:1791 59:1164 60:994 61:2386 62:2542 63:1968 64:5628 65:2327 66:4845 67:2967 68:1377 69:4164 70:1303 71:678 72:2998 74:2652 75:1474 76:599 77:2249 78:3959 79:3156 80:2051 81:1826 82:1527 83:1220 84:1424 85:3744 86:738 87:1914 88:2841 89:3438 90:545 91:7599 92:2078 93:2548 94:3541 95:4799 96:1345 97:348 98:1171 99:739 100:68 101:1064 102:2318 103:30334 104:4544 105:477 106:890 107:2543 108:900 109:4333 110:2019 111:3323 112:2066 113:1551 114:1525 115:2019 116:1922 117:2482 118:2323 119:1853 120:1738 121:1089 122:2555 123:2116 124:1553 125:2188 128:1244 129:981 130:972 131:2007 132:834 133:379 134:1906 135:290 136:869 137:889 138:2528 139:1522 140:1137 141:1475 142:1399 143:1418 144:1204 145:349 146:1879 147:1535 148:2253 149:1830 150:875 151:1120 152:1823 153:469 154:3795 155:1426 156:1638 157:1303 158:1046 159:2185 160:2571 161:1373 162:3502 163:1436 164:1678 165:1635 166:812 167:1717 168:3825 169:893 170:4545 171:852 172:3457 173:3104 174:1034 175:1147 176:3593 177:4746 178:3558 179:2107 180:2340 181:3283 182:3234 183:1939 184:2355 185:19837 186:4533 187:3956 188:4041 189:3450 190:8996 191:1453 192:10982 193:8737 194:7160 195:5062 196:2984 197:2461 198:6005 199:6064 200:7616 201:5833 202:10554 203:10061 204:4562 205:3477 206:3883 207:3444 208:4095 209:4789 210:4338 211:2435 212:4046 213:3561 214:1099 215:53 216:6477 217:2624 218:1294 219:571 220:2046 221:924 222:826 223:2014 End of report

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Detecting, mitigating, and preventing distributed large-scale prefix de-aggregation attacks
by Lars Prehn 21 Oct '22

21 Oct '22

Dear Routing WG, Our apologies to those who received this message via multiple channels. My colleagues and I recently revisited the topic of prefix de-aggregation attacks. We believe that the current IPv6 allocation policies combined with the ever-growing number of interconnection opportunities may facilitate those attacks to the point where they may circumvent traditional prevention mechanisms. Hence, we'd like to raise awareness on how to detect, mitigate, and prevent these kinds of attacks. # Prefix De-aggregation Attacks While allocation policies in IPv4 are very tight, even a new LIR can obtain, e.g., a /29 IPv6 address block from RIPE without justification [1]. This /29 may source more than a million unique IPv6 prefixes when using all CIDR sizes between /29 and /48 (the largest CIDR size that is not filtered). To prevent this many prefixes from flooding the DFZ, many ASes set a maximum prefix limit on their eBGP sessions. When initially introduced, these max-prefix limits prevented prefix de-aggregation attacks. In today's hyper-connected world, prefix limits transform these attacks into session-hunting challenges. To better illustrate this relationship, consider the following example: If an adversary combines two remote-peering offerings of BSO's IXReach [2] and Epsilon's Infinity Platform [3], they can establish ports at more than a hundred peering LANs. If this adversary uses Hurricane Electric as their IPv6 transit provider and establish a BGP session at every in-common peering LAN [4], this will lead to 100+ sessions. With a per-session limit of e.g. 500 prefixes, the adversary could redistribute 50K unique prefixes via this setup alone. If an adversary further increases the number of remote peering providers, adds announcements from BGP-enabled VPS services (e.g., Vultr [5] among many others [6]), and contracts additional IPv6 transit providers, they may globally increase the current IPv6 routing table size manifold. Notably, each of these new routes would have a valid ROV status once the adversary adds a single ROA entry for a /29 with a max CIDR size of /48; hence, they would pass the redistribution requirements for various transit providers. While many current router models support multiple million IPv6 routes, especially older models may crash, drop sessions, or behave in other unintended ways when either their FIB or RIB runs out of memory. When the adversary also withdraws all routes simultaneously, the number of updates generated from BGP's path-hunting may further lead to very high load for extended periods of time. To put this into perspective: Some of you might have noticed increased CPU load alongside other effects when Vultr was de-aggregating 12k IPv6 prefixes on October 5th [7]. Using the different methods described above, an highly-motivated adversary might be able to produce 1-2 orders of magnitude more updates. Please note that we performed various smaller (<600 prefixes) de-aggregation tests as part of our research---see sections 6 and 8 in the document referenced at the end of this notification for detailed explanations. While our experimental setup was very similar to the October 5th incident (we also announced address space obtained from SecureBit via VMs within Vultr), we are in no way related to that incident neither did we share any information about our research or findings with individuals outside our research group prior to the start of our private disclosure phase on October 11th. # Detection, Mitigation, and Prevention Mechanisms. Luckily, prefix de-aggregation attacks are easily detectable (e.g., based on prefix-limit notification thresholds or direct routing table size monitoring) and can be mitigated quickly by filtering either the more specifics of the covering prefix or all prefixes announced by the adversary's ASN(s). Effectively, damage can only be done within the human reaction time---which we hope to shorten with this notification. To protect yourself from prefix de-aggregation attacks, you may establish dynamic yet tight per-session limits on all eBGP sessions. As an adversary could enter unreasonably large values into databases such as PeeringDB, we'd recommend to not solely rely on them but also accept at most 1.5-2x the number of yesterday's prefixes for peers and customers and 1.2x yesterday's routing table size for transit providers (which would currently reflect a headroom of ~32k prefixes with a yearly growth rate of <50k prefixes [8]). We'd also recommend ensuring that the summed prefix limits across all sessions do not drastically exceed the router's maximal FIB size. To protect others, you may: (i) ensure that you only redistribute a certain number of routes per origin; currently, AS 9808 announces the most (~4K) IPv6 prefixes. (ii) ensure that you only redistribute a certain number of more-specific routes for each assigned address block; currently, 2409:8000::/20 is the prefix with the most (~10K) more-specifics. If you want to know more about the research that initiated this notification (including our concluded private disclosure process), you may find a write-up at: https://arxiv.org/pdf/2210.10676.pdf Best regards, Lars [1] https://www.ripe.net/publications/docs/ripe-738#initial_size [2] https://www.ixreach.com/services/remote-peering/ [3] https://epsilontel.com/global-network-footprint/internet-exchanges/ [4] https://he.net/peering.html [5] https://www.vultr.com/features/advanced-networking/ [6] https://docs.google.com/spreadsheets/d/1abmV_mXWWCsVxHLfouSivyS7ch-PcUww8S6… <https://docs.google.com/spreadsheets/d/1abmV_mXWWCsVxHLfouSivyS7ch-PcUww8S6…> [7] https://twitter.com/Qrator_Radar/status/1577748939805278209 [8] https://bgp.potaroo.net/v6/as2.0/index.html

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European cable cut may impact transoceanic routes
by Hank Nussbacher 20 Oct '22

20 Oct '22

https://trust.zscaler.com/zscloud.net/posts/12256 "We are aware of a major cable cut in the South of France that has impacted major subsea cables with connectivity to Asia, Europe, US and potentially other parts of the world. As a result of the cable cut, customers may see packet loss and or latency for websites and applications which traverse these impacted paths." Really? Not a peep on outages and nanog. Hysteria mongering? -Hank

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