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December 2022

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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 02 Dec '22

02 Dec '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 03 Dec, 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: 916495 Prefixes after maximum aggregation (per Origin AS): 346331 Deaggregation factor: 2.65 Unique aggregates announced (without unneeded subnets): 443280 Total ASes present in the Internet Routing Table: 73865 Prefixes per ASN: 12.41 Origin-only ASes present in the Internet Routing Table: 63445 Origin ASes announcing only one prefix: 26042 Transit ASes present in the Internet Routing Table: 10420 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: 1005 Number of instances of unregistered ASNs: 1010 Number of 32-bit ASNs allocated by the RIRs: 40761 Number of 32-bit ASNs visible in the Routing Table: 33760 Prefixes from 32-bit ASNs in the Routing Table: 164587 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 526 Number of addresses announced to Internet: 3063369856 Equivalent to 182 /8s, 151 /16s and 80 /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: 311275 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 239683 Total APNIC prefixes after maximum aggregation: 68244 APNIC Deaggregation factor: 3.51 Prefixes being announced from the APNIC address blocks: 234521 Unique aggregates announced from the APNIC address blocks: 97382 APNIC Region origin ASes present in the Internet Routing Table: 13128 APNIC Prefixes per ASN: 17.86 APNIC Region origin ASes announcing only one prefix: 3821 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: 8383 Number of APNIC addresses announced to Internet: 773709312 Equivalent to 46 /8s, 29 /16s and 222 /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: 267297 Total ARIN prefixes after maximum aggregation: 121921 ARIN Deaggregation factor: 2.19 Prefixes being announced from the ARIN address blocks: 268818 Unique aggregates announced from the ARIN address blocks: 129483 ARIN Region origin ASes present in the Internet Routing Table: 19070 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: 1935 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: 4684 Number of ARIN addresses announced to Internet: 1289197824 Equivalent to 76 /8s, 215 /16s and 153 /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: 262593 Total RIPE prefixes after maximum aggregation: 121388 RIPE Deaggregation factor: 2.16 Prefixes being announced from the RIPE address blocks: 259388 Unique aggregates announced from the RIPE address blocks: 155057 RIPE Region origin ASes present in the Internet Routing Table: 28164 RIPE Prefixes per ASN: 9.21 RIPE Region origin ASes announcing only one prefix: 11992 RIPE Region transit ASes present in the Internet Routing Table: 3957 Average RIPE Region AS path length visible: 4.2 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10898 Number of RIPE addresses announced to Internet: 716165760 Equivalent to 42 /8s, 175 /16s and 210 /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: 117313 Total LACNIC prefixes after maximum aggregation: 28373 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 116660 Unique aggregates announced from the LACNIC address blocks: 48901 LACNIC Region origin ASes present in the Internet Routing Table: 11001 LACNIC Prefixes per ASN: 10.60 LACNIC Region origin ASes announcing only one prefix: 2670 LACNIC Region transit ASes present in the Internet Routing Table: 2253 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: 8760 Number of LACNIC addresses announced to Internet: 175872000 Equivalent to 10 /8s, 123 /16s and 152 /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: 28604 Total AfriNIC prefixes after maximum aggregation: 5648 AfriNIC Deaggregation factor: 5.06 Prefixes being announced from the AfriNIC address blocks: 36582 Unique aggregates announced from the AfriNIC address blocks: 12024 AfriNIC Region origin ASes present in the Internet Routing Table: 1698 AfriNIC Prefixes per ASN: 21.54 AfriNIC Region origin ASes announcing only one prefix: 584 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: 1035 Number of AfriNIC addresses announced to Internet: 108125440 Equivalent to 6 /8s, 113 /16s and 221 /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 5955 786 695 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4882 4192 75 ERX-CERNET-BKB China Education and Rese 7552 3616 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3510 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3366 1867 85 VNPT-AS-VN VNPT Corp, VN 9498 2557 499 237 BBIL-AP BHARTI Airtel Ltd., IN 4766 2533 11252 598 KIXS-AS-KR Korea Telecom, KR 24560 2308 849 416 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 7674 10624 2899 AMAZON-02, US 11492 4546 301 570 CABLEONE, US 7155 3893 265 32 VIASAT-SP-BACKBONE, US 22773 3702 3060 317 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3527 1320 63 SHAW, CA 16625 3512 1834 2531 AKAMAI-AS, US 749 3064 50660 2331 DNIC-AS-00749, US 30036 2583 369 338 MEDIACOM-ENTERPRISE-BUSINESS, US 7018 2578 24059 1552 ATT-INTERNET4, US 396982 2565 3482 360 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 6961 1730 151 UNI2-AS, ES 9121 6365 1692 17 TTNET, TR 20940 4081 3400 182 AKAMAI-ASN1, NL 39891 4010 234 47 ALJAWWALSTC-AS, SA 8551 3977 374 38 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2952 2291 913 ROSTELECOM-AS, RU 9009 2645 252 1362 M247, RO 47331 2589 386 1951 TTNET, TR 34984 2250 357 609 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 10799 3336 597 Uninet S.A. de C.V., MX 10620 3461 506 848 Telmex Colombia S.A., CO 11830 2261 369 64 Instituto Costarricense de Electricidad 13999 2131 350 554 Mega Cable, S.A. de C.V., MX 28573 1333 2327 261 Claro NXT Telecomunicacoes Ltda, BR 6503 1293 338 521 Axtel, S.A.B. de C.V., MX 3816 1288 728 155 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1154 369 22 Telefonica del Peru S.A.A., PE 11664 1133 184 474 Techtel LMDS Comunicaciones Interactiva 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 24835 1548 537 31 RAYA-AS, EG 24863 1537 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 882 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 527 53 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 10799 3336 597 Uninet S.A. de C.V., MX 9808 9139 8884 50 CHINAMOBILE-CN China Mobile Communicati 16509 7674 10624 2899 AMAZON-02, US 12479 6961 1730 151 UNI2-AS, ES 9121 6365 1692 17 TTNET, TR 7545 5955 786 695 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4882 4192 75 ERX-CERNET-BKB China Education and Rese 11492 4546 301 570 CABLEONE, US 20940 4081 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 9139 9089 CHINAMOBILE-CN China Mobile Communications Grou 12479 6961 6810 UNI2-AS, ES 9121 6365 6348 TTNET, TR 7545 5955 5260 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4882 4807 ERX-CERNET-BKB China Education and Research Net 16509 7674 4775 AMAZON-02, US 11492 4546 3976 CABLEONE, US 39891 4010 3963 ALJAWWALSTC-AS, SA 8551 3977 3939 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 20940 4081 3899 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 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 /15:2048 /16:13516 /17:8303 /18:13900 /19:25190 /20:44356 /21:52395 /22:110218 /23:97945 /24:545572 /25:801 /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 5994 6961 UNI2-AS, ES 9121 5528 6365 TTNET, TR 8151 4784 10799 Uninet S.A. de C.V., MX 11492 3453 4546 CABLEONE, US 8551 3441 3977 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3335 3527 SHAW, CA 39891 3193 4010 ALJAWWALSTC-AS, SA 7155 2982 3893 VIASAT-SP-BACKBONE, US 22773 2731 3702 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2241 2583 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1845 2:1024 3:167 4:5 5:4065 6:118 7:5 8:1583 9:1 11:173 12:1614 13:380 14:2375 15:286 16:73 17:368 18:386 20:240 21:4 22:188 23:6012 24:2455 25:4 27:2707 29:19 31:2480 32:104 34:8 35:94 36:1808 37:4573 38:3879 39:771 40:145 41:3971 42:1154 43:2314 44:304 45:16374 46:4170 47:378 49:1723 50:1930 51:244 52:1506 54:397 55:838 56:8 57:78 58:1794 59:1159 60:1005 61:2426 62:2581 63:1950 64:5636 65:2337 66:4845 67:2983 68:1376 69:4143 70:1289 71:689 72:2988 74:2647 75:1470 76:599 77:2259 78:3958 79:3159 80:2041 81:1824 82:1499 83:1228 84:1503 85:3755 86:755 87:1932 88:2837 89:3494 90:578 91:7612 92:1994 93:2571 94:3537 95:4825 96:1315 97:345 98:1168 99:740 100:69 101:1052 102:2461 103:30496 104:4567 105:483 106:827 107:2547 108:915 109:4324 110:2024 111:3305 112:2042 113:1569 114:1605 115:2042 116:1912 117:2467 118:2333 119:1917 120:1723 121:1108 122:2593 123:2136 124:1578 125:2211 128:1259 129:949 130:971 131:2025 132:846 133:400 134:1904 135:295 136:878 137:856 138:2554 139:1522 140:1039 141:1487 142:1417 143:1422 144:1199 145:354 146:1897 147:1514 148:2283 149:1849 150:864 151:1146 152:1837 153:455 154:3802 155:1411 156:1634 157:1288 158:1041 159:2241 160:2578 161:1427 162:3530 163:1452 164:1677 165:1627 166:822 167:1731 168:3852 169:914 170:4569 171:869 172:3516 173:3106 174:1034 175:1144 176:3627 177:4782 178:3552 179:2148 180:2364 181:3358 182:3257 183:1936 184:2365 185:19962 186:4627 187:3925 188:4048 189:3435 190:9057 191:1466 192:11003 193:8801 194:7217 195:5078 196:2974 197:2445 198:6018 199:6099 200:7711 201:5833 202:10616 203:10070 204:4608 205:3500 206:3836 207:3405 208:4118 209:4818 210:4422 211:2489 212:4053 213:3457 214:1104 215:57 216:6581 217:2626 218:1287 219:575 220:2050 221:954 222:840 223:2031 End of report

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