This is an automated weekly mailing describing the state of the IPv6 Research & Education Routing Table received by NSRC's collector from BT London. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org/REN. If you have any comments please contact Philip Smith . IPv6 R&E Routing Table Report 23:03 GMT Sat 22 Jul, 2023 IPv6 BGP Table (Global) as seen at BT London. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/London/ Analysis Summary ---------------- BGP routing table entries examined: 179294 Number of IPv6 prefixes with a valid ROA: 96379 Number of IPv6 prefixes with an invalid ROA: 637 Number of IPv6 prefixes with no ROA: 82278 Total ASNs present in the IPv6 Routing Table: 30986 Average AS path length: 4.3 Longest AS path: 52 Total Origin ASNs present in the IPv6 Routing Table: 30675 Paths with bogon ASNs present in the IPv6 Routing Table: 4 IPv6 Subnet Table ----------------- /16:0 /17:0 /18:0 /19:1 /20:14 /21:3 /22:7 /23:7 /24:31 /25:8 /26:16 /27:20 /28:203 /29:4293 /30:603 /31:313 /32:22977 /33:3197 /34:2726 /35:1035 /36:6360 /37:1044 /38:1733 /39:1538 /40:14501 /41:941 /42:3543 /43:1143 /44:17088 /45:2102 /46:4814 /47:5598 /48:83433 /49:0 /50:0 /51:0 /52:0 /53:0 /54:0 /55:0 /56:0 /57:0 /58:0 /59:0 /60:0 /61:0 /62:0 /63:0 /64:2 Global IPv6 Per AS prefix count summary --------------------------------------- ASN No of Nets Description 11172 5721 Alestra, S. de R.L. de C.V., MX 9808 4500 CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., 18403 4246 FPT-AS-AP FPT Telecom Company, VN 16509 3749 AMAZON-02, US 45609 2499 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for GPRS Service 7552 2482 VIETEL-AS-AP Viettel Group, VN 24547 1829 CMNET-V4HEBEI-AS-AP Hebei Mobile Communication Company Limit 45271 1741 ICLNET-AS-AP Idea Cellular Limited, IN 28573 1664 Claro NXT Telecomunicacoes Ltda, BR 12479 1621 UNI2-AS, ES 17622 1533 CNCGROUP-GZ China Unicom Guangzhou network, CN 36183 1387 AKAMAI-AS, US 32098 1360 TRANSTELCO-INC, US 38266 1342 VIL-AS-AP Vodafone Idea Ltd, IN 13335 1305 CLOUDFLARENET, US 17072 1267 TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX 39891 1230 ALJAWWALSTC-AS, SA 22773 1226 ASN-CXA-ALL-CCI-22773-RDC, US 56046 1144 CMNET-JIANGSU-AP China Mobile communications corporation, CN 62240 1118 CLOUVIDER Clouvider - Global ASN, GB End of report