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 23:04 GMT Sat 15 Apr, 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: 169259 Number of IPv6 prefixes with a valid ROA: 83254 Number of IPv6 prefixes with an invalid ROA: 565 Number of IPv6 prefixes with no ROA: 85440 Total ASNs present in the IPv6 Routing Table: 30468 Average AS path length: 4.3 Longest AS path: 58 Total Origin ASNs present in the IPv6 Routing Table: 30157 Paths with bogon ASNs present in the IPv6 Routing Table: 53 IPv6 Subnet Table ----------------- /16:0 /17:0 /18:0 /19:1 /20:14 /21:3 /22:7 /23:7 /24:30 /25:8 /26:16 /27:20 /28:195 /29:4267 /30:585 /31:301 /32:22606 /33:3046 /34:2647 /35:1056 /36:6167 /37:1010 /38:1648 /39:1443 /40:13823 /41:926 /42:2527 /43:1039 /44:15043 /45:1725 /46:3280 /47:3924 /48:81893 /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 5233 Alestra, S. de R.L. de C.V., MX 9808 4292 CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., 16509 3407 AMAZON-02, US 45609 2411 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for GPRS Service 17622 2315 CNCGROUP-GZ China Unicom Guangzhou network, CN 7552 2197 VIETEL-AS-AP Viettel Group, VN 28573 1877 Claro NXT Telecomunicacoes Ltda, BR 24547 1825 CMNET-V4HEBEI-AS-AP Hebei Mobile Communication Company Limit 45271 1746 ICLNET-AS-AP Idea Cellular Limited, IN 12479 1622 UNI2-AS, ES 17623 1447 CNCGROUP-SZ China Unicom Shenzen network, CN 36183 1365 AKAMAI-AS, US 32098 1323 TRANSTELCO-INC, US 39891 1276 ALJAWWALSTC-AS, SA 22773 1254 ASN-CXA-ALL-CCI-22773-RDC, US 17072 1242 TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX 38266 1237 VODAFONE-IN Vodafone India Ltd., IN 13335 1187 CLOUDFLARENET, US 56046 1130 CMNET-JIANGSU-AP China Mobile communications corporation, CN 62240 1121 CLOUVIDER Clouvider - Global ASN, GB End of report