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 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: 169219 Number of IPv6 prefixes with a valid ROA: 82864 Number of IPv6 prefixes with an invalid ROA: 584 Number of IPv6 prefixes with no ROA: 85771 Total ASNs present in the IPv6 Routing Table: 30465 Average AS path length: 4.3 Longest AS path: 58 Total Origin ASNs present in the IPv6 Routing Table: 30155 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 /29:4266 /30:584 /31:301 /32:22630 /33:3045 /34:2616 /35:1049 /36:6187 /37:1014 /38:1646 /39:1446 /40:13861 /41:933 /42:2533 /43:1043 /44:14965 /45:1747 /46:3109 /47:3537 /48:82404 /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 5268 Alestra, S. de R.L. de C.V., MX 9808 4299 CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., 16509 3403 AMAZON-02, US 45609 2426 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 1879 Claro NXT Telecomunicacoes Ltda, BR 24547 1825 CMNET-V4HEBEI-AS-AP Hebei Mobile Communication Company Limit 45271 1748 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 39891 1327 ALJAWWALSTC-AS, SA 32098 1312 TRANSTELCO-INC, US 22773 1247 ASN-CXA-ALL-CCI-22773-RDC, US 17072 1245 TOTAL PLAY TELECOMUNICACIONES SA DE CV, MX 38266 1245 VODAFONE-IN Vodafone India Ltd., IN 13335 1190 CLOUDFLARENET, US 56046 1130 CMNET-JIANGSU-AP China Mobile communications corporation, CN 62240 1121 CLOUVIDER Clouvider - Global ASN, GB End of report