October 2021 - routing-wg - mailman.ripe.net

Weekly Global IPv4 Routing Table Report
by cscora＠apnic.net 08 Oct '21

08 Oct '21

This is an automated weekly mailing describing the state of the Internet 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 http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. Global IPv4 Routing Table Report 04:00 +10GMT Sat 09 Oct, 2021 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 865799 Prefixes after maximum aggregation (per Origin AS): 328037 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 417220 Total ASes present in the Internet Routing Table: 72037 Prefixes per ASN: 12.02 Origin-only ASes present in the Internet Routing Table: 61895 Origin ASes announcing only one prefix: 25518 Transit ASes present in the Internet Routing Table: 10142 Transit-only ASes present in the Internet Routing Table: 342 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 53 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 977 Number of instances of unregistered ASNs: 981 Number of 32-bit ASNs allocated by the RIRs: 37427 Number of 32-bit ASNs visible in the Routing Table: 31091 Prefixes from 32-bit ASNs in the Routing Table: 144662 Number of bogon 32-bit ASNs visible in the Routing Table: 28 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 515 Number of addresses announced to Internet: 3069966592 Equivalent to 182 /8s, 251 /16s and 249 /24s Percentage of available address space announced: 82.9 Percentage of allocated address space announced: 82.9 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 287724 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 231808 Total APNIC prefixes after maximum aggregation: 66263 APNIC Deaggregation factor: 3.50 Prefixes being announced from the APNIC address blocks: 227275 Unique aggregates announced from the APNIC address blocks: 92050 APNIC Region origin ASes present in the Internet Routing Table: 12003 APNIC Prefixes per ASN: 18.93 APNIC Region origin ASes announcing only one prefix: 3416 APNIC Region transit ASes present in the Internet Routing Table: 1688 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7169 Number of APNIC addresses announced to Internet: 772148352 Equivalent to 46 /8s, 6 /16s and 12 /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, 131072-147769 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: 253515 Total ARIN prefixes after maximum aggregation: 116297 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 253446 Unique aggregates announced from the ARIN address blocks: 120928 ARIN Region origin ASes present in the Internet Routing Table: 18893 ARIN Prefixes per ASN: 13.41 ARIN Region origin ASes announcing only one prefix: 6851 ARIN Region transit ASes present in the Internet Routing Table: 1943 Average ARIN Region AS path length visible: 3.8 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4146 Number of ARIN addresses announced to Internet: 1301072384 Equivalent to 77 /8s, 140 /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: 241164 Total RIPE prefixes after maximum aggregation: 112909 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 237322 Unique aggregates announced from the RIPE address blocks: 145502 RIPE Region origin ASes present in the Internet Routing Table: 28061 RIPE Prefixes per ASN: 8.46 RIPE Region origin ASes announcing only one prefix: 12083 RIPE Region transit ASes present in the Internet Routing Table: 3896 Average RIPE Region AS path length visible: 4.3 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10443 Number of RIPE addresses announced to Internet: 711814272 Equivalent to 42 /8s, 109 /16s and 108 /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: 111884 Total LACNIC prefixes after maximum aggregation: 26638 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 112798 Unique aggregates announced from the LACNIC address blocks: 47315 LACNIC Region origin ASes present in the Internet Routing Table: 10781 LACNIC Prefixes per ASN: 10.46 LACNIC Region origin ASes announcing only one prefix: 2628 LACNIC Region transit ASes present in the Internet Routing Table: 2135 Average LACNIC Region AS path length visible: 4.9 Max LACNIC Region AS path length visible: 53 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8454 Number of LACNIC addresses announced to Internet: 176666880 Equivalent to 10 /8s, 135 /16s and 185 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-272796 + 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: 26451 Total AfriNIC prefixes after maximum aggregation: 5204 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 34443 Unique aggregates announced from the AfriNIC address blocks: 10996 AfriNIC Region origin ASes present in the Internet Routing Table: 1548 AfriNIC Prefixes per ASN: 22.25 AfriNIC Region origin ASes announcing only one prefix: 540 AfriNIC Region transit ASes present in the Internet Routing Table: 306 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 879 Number of AfriNIC addresses announced to Internet: 107914496 Equivalent to 6 /8s, 110 /16s and 165 /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 8045 9000 57 CMNET-GD Guangdong Mobile Communication 7545 5835 786 680 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4713 4192 74 ERX-CERNET-BKB China Education and Rese 7552 3619 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3494 1022 56 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3027 1896 55 VNPT-AS-VN VNPT Corp, VN 4766 2505 11119 576 KIXS-AS-KR Korea Telecom, KR 9498 2173 472 237 BBIL-AP BHARTI Airtel Ltd., IN 45090 2127 1198 75 CNNIC-TENCENT-NET-AP Shenzhen Tencent C 4755 2126 437 202 TATACOMM-AS TATA Communications formerl Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 5665 9813 2489 AMAZON-02, US 11492 4681 310 767 CABLEONE, US 22773 4099 3057 383 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 16625 3636 1880 2536 AKAMAI-AS, US 6327 3374 1319 67 SHAW, CA 30036 2588 374 179 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2533 5028 453 CENTURYLINK-US-LEGACY-QWEST, US 20115 2241 3032 504 CHARTER-20115, US 7018 2229 24160 1424 ATT-INTERNET4, US Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6846 1726 143 UNI2-AS, ES 20940 3863 3348 214 AKAMAI-ASN1, NL 8551 3277 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3269 187 23 ALJAWWALSTC-AS, SA 12389 2919 2279 896 ROSTELECOM-AS, RU 9009 2485 258 1311 M247, GB 34984 2233 358 603 TELLCOM-AS, TR 58224 1681 899 581 TCI, IR 61317 1637 257 912 ASDETUK www.heficed.com, GB 13188 1610 100 27 TRIOLAN, UA Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 8878 3459 570 Uninet S.A. de C.V., MX 10620 3409 519 711 Telmex Colombia S.A., CO 11830 2498 369 62 Instituto Costarricense de Electricidad 13999 1698 337 462 Mega Cable, S.A. de C.V., MX 6503 1522 359 477 Axtel, S.A.B. de C.V., MX 28573 1465 2309 242 CLARO S.A., BR 3816 1241 651 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1146 2351 136 TIM SA, BR 6147 1090 370 22 Telefonica del Peru S.A.A., PE 11172 957 111 70 Alestra, S. de R.L. de C.V., MX Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1636 393 21 LINKdotNET-AS, EG 24835 1529 503 32 RAYA-AS, EG 36992 1287 1418 270 ETISALAT-MISR, EG 36903 1183 537 110 MT-MPLS, MA 29571 800 68 11 ORANGE-COTE-IVOIRE, CI 36935 630 523 44 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 504 50 30 WANANCHI-, KE 37342 471 32 1 MOVITEL, MZ 2018 344 319 73 TENET-1, ZA Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 8878 3459 570 Uninet S.A. de C.V., MX 9808 8045 9000 57 CMNET-GD Guangdong Mobile Communication 12479 6846 1726 143 UNI2-AS, ES 7545 5835 786 680 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 5665 9813 2489 AMAZON-02, US 4538 4713 4192 74 ERX-CERNET-BKB China Education and Rese 11492 4681 310 767 CABLEONE, US 22773 4099 3057 383 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3950 264 30 VIASAT-SP-BACKBONE, US 20940 3863 3348 214 AKAMAI-ASN1, NL Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 8045 7988 CMNET-GD Guangdong Mobile Communication Co.Ltd. 12479 6846 6703 UNI2-AS, ES 7545 5835 5155 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4713 4639 ERX-CERNET-BKB China Education and Research Net 7155 3950 3920 VIASAT-SP-BACKBONE, US 11492 4681 3914 CABLEONE, US 22773 4099 3716 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3863 3649 AKAMAI-ASN1, NL 7552 3619 3599 VIETEL-AS-AP Viettel Group, VN 7713 3494 3438 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 398418 UNALLOCATED 8.2.200.0/24 2914 NTT-COMMUNICATIONS-2914, US 46990 UNALLOCATED 8.5.242.0/23 3356 LEVEL3, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 46887 LIGHTOWER, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US Complete listing at http://thyme.rand.apnic.net/current/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at http://thyme.rand.apnic.net/current/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.132.208.0/24 Origin: 7850 CITYLINKFIBER, US 23.132.208.0/24 Transit: 15164 UPNLLC, US 23.136.80.0/24 Origin: 20119 ARROW, CA 23.136.80.0/24 Transit: 6939 HURRICANE, US 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.247.168.0/24 Origin: 142632 NASULEX-AS-AP Nasulex, NL 23.247.168.0/24 Transit: 53667 PONYNET, US 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 http://thyme.rand.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 /10:41 /11:99 /12:300 /13:597 /14:1215 /15:2042 /16:13602 /17:8301 /18:14055 /19:25519 /20:42808 /21:51147 /22:107029 /23:92523 /24:505038 /25:1454 /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 5798 6846 UNI2-AS, ES 11492 3620 4681 CABLEONE, US 8151 3256 8878 Uninet S.A. de C.V., MX 6327 3181 3374 SHAW, CA 7155 3040 3950 VIASAT-SP-BACKBONE, US 22773 3022 4099 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2805 3269 ALJAWWALSTC-AS, SA 8551 2743 3277 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 30036 2242 2588 MEDIACOM-ENTERPRISE-BUSINESS, US 11830 1931 2498 Instituto Costarricense de Electricidad y Telec Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1927 2:1054 3:145 4:19 5:3654 6:85 7:5 8:1547 9:1 11:172 12:1712 13:391 14:2281 15:114 16:24 17:368 18:121 20:126 21:4 22:188 23:5169 24:2432 25:2 27:2559 29:19 31:2340 32:112 34:1 35:47 36:1718 37:3904 38:2269 39:602 40:151 41:3809 42:1037 43:2077 44:286 45:15493 46:3719 47:320 48:3 49:1678 50:1833 51:99 52:1288 54:247 55:711 56:4 57:54 58:1746 59:1186 60:933 61:2291 62:2265 63:1964 64:5373 65:2360 66:4948 67:2865 68:1158 69:4126 70:1361 71:678 72:3151 74:2614 75:1492 76:693 77:2030 78:1722 79:2607 80:1871 81:1537 82:1366 83:1158 84:1291 85:2833 86:725 87:1846 88:982 89:3058 90:499 91:7369 92:1843 93:2553 94:3165 95:3521 96:1300 97:347 98:975 99:960 100:75 101:1039 102:1690 103:27070 104:4063 105:438 106:823 107:2368 108:731 109:3871 110:2045 111:3130 112:1939 113:1409 114:1501 115:1934 116:1839 117:2410 118:2308 119:1893 120:1561 121:1080 122:2533 123:2170 124:1593 125:2051 128:1379 129:1314 130:899 131:2020 132:775 133:363 134:1862 135:318 136:792 137:862 138:2397 139:1192 140:761 141:1244 142:1180 143:1373 144:1266 145:326 146:1546 147:1443 148:2154 149:1509 150:831 151:1088 152:1659 153:427 154:3104 155:1327 156:1830 157:1183 158:1006 159:2035 160:2349 161:1247 162:3367 163:1083 164:1559 165:1445 166:593 167:1651 168:3647 169:682 170:4327 171:806 172:2750 173:2950 174:999 175:1121 176:3322 177:4542 178:3004 179:1920 180:2259 181:2669 182:3115 183:2011 184:2430 185:18917 186:4239 187:3178 188:3438 189:2900 190:8661 191:1299 192:10694 193:8370 194:6838 195:4878 196:2903 197:2124 198:6032 199:5926 200:7358 201:5488 202:10522 203:10083 204:4499 205:3379 206:4059 207:3352 208:4017 209:4735 210:4190 211:2362 212:3768 213:3364 214:1162 215:61 216:6354 217:2611 218:1219 219:670 220:1946 221:977 222:855 223:2050 End of report

1 0

Support for "Publish in Parent" [RPKI RFC 8181]?
by Job Snijders 08 Oct '21

08 Oct '21

Hi working group, In recent mail threads the concepts of "Hosted RPKI" and "Delegated RPKI" came up, but as mentioned by Tim and Rubens, another flavor also exists! A "hybrid" between Delegated and Hosted, informally known as "publish in parent" (aka RFC 8181 compliant Publication Services). There are multiple benefits to the general RPKI ecosystem when RIRs and NIRs support RFC 8181: * Resource Holders are relieved from the responsibility to operate always online RSYNC and RRDP servers. * Reducing the number of Publication servers reduces overall resource consumption for Relying Parties. Consolidation of Publication Servers improves efficiency and is generally considered advantageous. * Helps avoid "reinventing the wheel": it might be better to have a small group of experts build a globally performant and resillient infrastructure that serves everyone, rather than everyone building the 'same' infrastructure. Other RIRs and NIRs are also working on RFC 8181 support. RFC 8181 is relatively new so it'll take some time before we see universal availability. NIC.BR (available): https://registro.br/tecnologia/numeracao/rpki/ APNIC (available): https://blog.apnic.net/2020/11/20/apnic-now-supports-rfc-aligned-publish-in… ARIN (planned): https://www.arin.net/participate/community/acsp/suggestions/2020/2020-1/ Is implementing RFC 8181 support something RIPE NCC should add to the https://www.ripe.net/manage-ips-and-asns/resource-management/rpki/rpki-plan… ? What do others think? Kind regards, Job Relevant documentation: https://datatracker.ietf.org/doc/html/rfc8181

6 11

Weekly Global IPv4 Routing Table Report
by cscora＠apnic.net 01 Oct '21

01 Oct '21

This is an automated weekly mailing describing the state of the Internet 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 http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. Global IPv4 Routing Table Report 04:00 +10GMT Sat 02 Oct, 2021 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 864928 Prefixes after maximum aggregation (per Origin AS): 327395 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 416427 Total ASes present in the Internet Routing Table: 71992 Prefixes per ASN: 12.01 Origin-only ASes present in the Internet Routing Table: 61880 Origin ASes announcing only one prefix: 25516 Transit ASes present in the Internet Routing Table: 10112 Transit-only ASes present in the Internet Routing Table: 339 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 35 Prefixes from unregistered ASNs in the Routing Table: 900 Number of instances of unregistered ASNs: 906 Number of 32-bit ASNs allocated by the RIRs: 37393 Number of 32-bit ASNs visible in the Routing Table: 31025 Prefixes from 32-bit ASNs in the Routing Table: 144330 Number of bogon 32-bit ASNs visible in the Routing Table: 34 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 452 Number of addresses announced to Internet: 3068651008 Equivalent to 182 /8s, 231 /16s and 230 /24s Percentage of available address space announced: 82.9 Percentage of allocated address space announced: 82.9 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 287757 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 231738 Total APNIC prefixes after maximum aggregation: 66212 APNIC Deaggregation factor: 3.50 Prefixes being announced from the APNIC address blocks: 227075 Unique aggregates announced from the APNIC address blocks: 91937 APNIC Region origin ASes present in the Internet Routing Table: 11991 APNIC Prefixes per ASN: 18.94 APNIC Region origin ASes announcing only one prefix: 3418 APNIC Region transit ASes present in the Internet Routing Table: 1671 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7148 Number of APNIC addresses announced to Internet: 772173696 Equivalent to 46 /8s, 6 /16s and 111 /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, 131072-147769 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: 252764 Total ARIN prefixes after maximum aggregation: 115758 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 252694 Unique aggregates announced from the ARIN address blocks: 120568 ARIN Region origin ASes present in the Internet Routing Table: 18899 ARIN Prefixes per ASN: 13.37 ARIN Region origin ASes announcing only one prefix: 6867 ARIN Region transit ASes present in the Internet Routing Table: 1951 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4130 Number of ARIN addresses announced to Internet: 1300138752 Equivalent to 77 /8s, 126 /16s and 139 /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: 241282 Total RIPE prefixes after maximum aggregation: 112897 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 237443 Unique aggregates announced from the RIPE address blocks: 145240 RIPE Region origin ASes present in the Internet Routing Table: 28049 RIPE Prefixes per ASN: 8.47 RIPE Region origin ASes announcing only one prefix: 12068 RIPE Region transit ASes present in the Internet Routing Table: 3898 Average RIPE Region AS path length visible: 4.3 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10427 Number of RIPE addresses announced to Internet: 711382656 Equivalent to 42 /8s, 102 /16s and 214 /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: 111765 Total LACNIC prefixes after maximum aggregation: 26637 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 112683 Unique aggregates announced from the LACNIC address blocks: 47245 LACNIC Region origin ASes present in the Internet Routing Table: 10781 LACNIC Prefixes per ASN: 10.45 LACNIC Region origin ASes announcing only one prefix: 2622 LACNIC Region transit ASes present in the Internet Routing Table: 2123 Average LACNIC Region AS path length visible: 4.9 Max LACNIC Region AS path length visible: 29 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8444 Number of LACNIC addresses announced to Internet: 176435200 Equivalent to 10 /8s, 132 /16s and 48 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-272796 + 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: 26479 Total AfriNIC prefixes after maximum aggregation: 5191 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 34581 Unique aggregates announced from the AfriNIC address blocks: 11037 AfriNIC Region origin ASes present in the Internet Routing Table: 1546 AfriNIC Prefixes per ASN: 22.37 AfriNIC Region origin ASes announcing only one prefix: 541 AfriNIC Region transit ASes present in the Internet Routing Table: 302 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 876 Number of AfriNIC addresses announced to Internet: 108194560 Equivalent to 6 /8s, 114 /16s and 235 /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 8042 9000 57 CMNET-GD Guangdong Mobile Communication 7545 5826 786 677 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4713 4192 74 ERX-CERNET-BKB China Education and Rese 7552 3612 1330 20 VIETEL-AS-AP Viettel Group, VN 7713 3515 1022 56 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3012 1897 56 VNPT-AS-VN VNPT Corp, VN 4766 2495 11119 576 KIXS-AS-KR Korea Telecom, KR 9498 2170 472 237 BBIL-AP BHARTI Airtel Ltd., IN 4755 2127 438 203 TATACOMM-AS TATA Communications formerl 45090 2127 1198 75 CNNIC-TENCENT-NET-AP Shenzhen Tencent C Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 5657 9780 2489 AMAZON-02, US 11492 4706 311 750 CABLEONE, US 22773 4028 3042 318 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3947 264 30 VIASAT-SP-BACKBONE, US 16625 3600 1861 2514 AKAMAI-AS, US 6327 3369 1318 66 SHAW, CA 30036 2589 374 168 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2530 5028 450 CENTURYLINK-US-LEGACY-QWEST, US 20115 2242 3032 505 CHARTER-20115, US 7018 2227 24176 1421 ATT-INTERNET4, US Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6858 1726 143 UNI2-AS, ES 20940 3848 3348 216 AKAMAI-ASN1, NL 8551 3289 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3269 187 23 ALJAWWALSTC-AS, SA 12389 2913 2279 895 ROSTELECOM-AS, RU 9009 2492 259 1310 M247, GB 34984 2229 358 602 TELLCOM-AS, TR 58224 1667 897 579 TCI, IR 61317 1645 256 920 ASDETUK www.heficed.com, GB 13188 1610 100 27 TRIOLAN, UA Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 8866 3457 570 Uninet S.A. de C.V., MX 10620 3410 520 699 Telmex Colombia S.A., CO 11830 2495 369 62 Instituto Costarricense de Electricidad 13999 1696 358 464 Mega Cable, S.A. de C.V., MX 6503 1516 359 477 Axtel, S.A.B. de C.V., MX 28573 1462 2307 241 CLARO S.A., BR 3816 1241 652 151 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1148 2351 136 TIM SA, BR 6147 1089 370 22 Telefonica del Peru S.A.A., PE 11172 957 111 70 Alestra, S. de R.L. de C.V., MX Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1639 393 21 LINKdotNET-AS, EG 24835 1549 503 32 RAYA-AS, EG 36992 1283 1417 269 ETISALAT-MISR, EG 36903 1183 537 110 MT-MPLS, MA 29571 799 68 11 ORANGE-COTE-IVOIRE, CI 6713 611 1863 34 IAM-AS, MA 36935 607 522 40 Vodafone-, EG 15399 505 50 30 WANANCHI-, KE 37342 471 32 1 MOVITEL, MZ 2018 338 319 73 TENET-1, ZA Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 8866 3457 570 Uninet S.A. de C.V., MX 9808 8042 9000 57 CMNET-GD Guangdong Mobile Communication 12479 6858 1726 143 UNI2-AS, ES 7545 5826 786 677 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 5657 9780 2489 AMAZON-02, US 4538 4713 4192 74 ERX-CERNET-BKB China Education and Rese 11492 4706 311 750 CABLEONE, US 22773 4028 3042 318 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3947 264 30 VIASAT-SP-BACKBONE, US 20940 3848 3348 216 AKAMAI-ASN1, NL Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 8042 7985 CMNET-GD Guangdong Mobile Communication Co.Ltd. 12479 6858 6715 UNI2-AS, ES 7545 5826 5149 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4713 4639 ERX-CERNET-BKB China Education and Research Net 11492 4706 3956 CABLEONE, US 7155 3947 3917 VIASAT-SP-BACKBONE, US 22773 4028 3710 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3848 3632 AKAMAI-ASN1, NL 7552 3612 3592 VIETEL-AS-AP Viettel Group, VN 7713 3515 3459 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 46887 LIGHTOWER, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US 32306 UNALLOCATED 8.46.80.0/24 33652 CMCS, US Complete listing at http://thyme.rand.apnic.net/current/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at http://thyme.rand.apnic.net/current/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.132.208.0/24 Origin: 7850 CITYLINKFIBER, US 23.132.208.0/24 Transit: 15164 UPNLLC, US 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 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 41.57.124.0/22 Origin: 37442 UNASSIGNED 41.57.124.0/22 Transit: 174 COGENT-174, US 41.57.124.0/23 Origin: 37442 UNASSIGNED 41.57.124.0/23 Transit: 37204 TELONE, ZW Complete listing at http://thyme.rand.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 /10:41 /11:101 /12:304 /13:597 /14:1213 /15:2040 /16:13596 /17:8317 /18:14098 /19:25517 /20:42653 /21:50989 /22:106842 /23:92430 /24:504709 /25:1452 /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 5810 6858 UNI2-AS, ES 11492 3645 4706 CABLEONE, US 8151 3240 8866 Uninet S.A. de C.V., MX 6327 3176 3369 SHAW, CA 7155 3037 3947 VIASAT-SP-BACKBONE, US 22773 2988 4028 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2805 3269 ALJAWWALSTC-AS, SA 8551 2755 3289 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 30036 2242 2589 MEDIACOM-ENTERPRISE-BUSINESS, US 11830 1929 2495 Instituto Costarricense de Electricidad y Telec Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1927 2:1071 3:145 4:20 5:3713 6:85 7:5 8:1546 9:1 11:172 12:1723 13:390 14:2274 15:113 16:24 17:364 18:120 20:126 21:4 22:188 23:5153 24:2447 25:2 27:2544 29:19 31:2347 32:112 34:1 35:47 36:1725 37:3926 38:2259 39:599 40:166 41:3818 42:1015 43:2063 44:288 45:15511 46:3733 47:320 48:5 49:1666 50:1819 51:99 52:1286 54:250 55:738 56:4 57:54 58:1740 59:1183 60:931 61:2291 62:2275 63:1966 64:5368 65:2360 66:4970 67:2873 68:1161 69:4125 70:1361 71:677 72:3150 74:2618 75:1490 76:694 77:2024 78:1700 79:2621 80:1875 81:1546 82:1386 83:1155 84:1291 85:2923 86:716 87:1841 88:1016 89:3002 90:505 91:7385 92:1848 93:2549 94:3165 95:3511 96:1305 97:346 98:975 99:958 100:75 101:1039 102:1701 103:26991 104:4017 105:438 106:821 107:2349 108:727 109:3870 110:2038 111:3124 112:1937 113:1408 114:1466 115:1931 116:1846 117:2412 118:2310 119:1891 120:1561 121:1082 122:2545 123:2164 124:1594 125:2055 128:1366 129:1323 130:893 131:2026 132:778 133:362 134:1861 135:316 136:787 137:855 138:2399 139:1186 140:755 141:1230 142:1204 143:1370 144:1269 145:325 146:1546 147:1412 148:2164 149:1502 150:824 151:1087 152:1644 153:428 154:3109 155:1340 156:1881 157:1239 158:1003 159:2032 160:2376 161:1252 162:3387 163:1102 164:1553 165:1443 166:590 167:1652 168:3659 169:683 170:4347 171:806 172:2743 173:2948 174:1001 175:1118 176:3316 177:4481 178:3003 179:1895 180:2257 181:2663 182:3111 183:2011 184:2423 185:18892 186:4253 187:3146 188:3396 189:2891 190:8654 191:1327 192:10702 193:8351 194:6816 195:4865 196:2897 197:2123 198:6015 199:5939 200:7338 201:5488 202:10514 203:10060 204:4503 205:3368 206:3793 207:3367 208:4020 209:4738 210:4184 211:2359 212:3768 213:3391 214:1168 215:64 216:6373 217:2600 218:1218 219:670 220:1946 221:977 222:855 223:2049 End of report

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