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 14 Jan, 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: 162043 Number of IPv6 prefixes with a valid ROA: 73419 Number of IPv6 prefixes with an invalid ROA: 509 Number of IPv6 prefixes with no ROA: 88115 Total ASNs present in the IPv6 Routing Table: 29852 Average AS path length: 4.3 Longest AS path: 58 Total Origin ASNs present in the IPv6 Routing Table: 29548 Paths with bogon ASNs present in the IPv6 Routing Table: 19 IPv6 Subnet Table ----------------- /16:0 /17:0 /18:0 /19:1 /20:16 /21:3 /22:7 /23:8 /24:30 /25:8 /26:16 /27:20 /28:194 /29:4287 /30:649 /31:280 /32:22566 /33:2921 /34:2579 /35:1012 /36:6010 /37:972 /38:1612 /39:1388 /40:13329 /41:903 /42:2328 /43:1002 /44:14644 /45:1575 /46:3246 /47:3445 /48:76990 /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 4121 Alestra, S. de R.L. de C.V., MX 9808 3985 CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., 16509 2852 AMAZON-02, US 45609 2385 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for GPRS Service 17622 2293 CNCGROUP-GZ China Unicom Guangzhou network, CN 7552 2162 VIETEL-AS-AP Viettel Group, VN 45271 1847 ICLNET-AS-AP Idea Cellular Limited, IN 24547 1825 CMNET-V4HEBEI-AS-AP Hebei Mobile Communication Company Limit 28573 1757 Claro NXT Telecomunicacoes Ltda, BR 12479 1632 UNI2-AS, ES 17623 1473 CNCGROUP-SZ China Unicom Shenzen network, CN 39891 1417 ALJAWWALSTC-AS, SA 22773 1338 ASN-CXA-ALL-CCI-22773-RDC, US 36183 1305 AKAMAI-AS, US 32098 1281 TRANSTELCO-INC, US 38266 1201 VODAFONE-IN Vodafone India Ltd., IN 56046 1125 CMNET-JIANGSU-AP China Mobile communications corporation, CN 62240 1121 CLOUVIDER Clouvider - Global ASN, GB 13335 1119 CLOUDFLARENET, US 17072 1083 TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX End of report