This is an automated weekly mailing describing the state of the IPv6 Research & Education Routing Table received by NSRC's collector from SingAREN. 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 20:00 GMT Sat 15 Apr, 2023 IPv6 BGP Table (R&E) as seen at SingAREN. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/SingAREN/ Analysis Summary ---------------- BGP routing table entries examined: 6324 Number of IPv6 prefixes with a valid ROA: 882 Number of IPv6 prefixes with an invalid ROA: 101 Number of IPv6 prefixes with no ROA: 5341 Total ASNs present in the IPv6 Routing Table: 5175 Average AS path length: 5.7 Longest AS path: 15 Total Origin ASNs present in the IPv6 Routing Table: 5149 Paths with bogon ASNs present in the IPv6 Routing Table: 1 IPv6 Subnet Table ----------------- /16:0 /17:0 /18:0 /19:0 /20:1 /21:1 /22:1 /23:0 /24:2 /25:0 /26:0 /27:0 /28:6 /29:54 /30:16 /31:3 /32:4535 /33:58 /34:11 /35:22 /36:41 /37:16 /38:12 /39:1 /40:149 /41:9 /42:8 /43:2 /44:80 /45:15 /46:9 /47:15 /48:1231 /49:4 /50:0 /51:0 /52:1 /53:0 /54:0 /55:0 /56:2 /57:0 /58:0 /59:0 /60:0 /61:0 /62:0 /63:0 /64:14 Global IPv6 Per AS prefix count summary --------------------------------------- ASN No of Nets Description 7497 154 CSTNET-AS-AP Computer Network Information Center, CN 55824 90 NKN-CORE-NW NKN Core Network, IN 4758 64 NICNET-VSNL-BOARDER-AP National Informatics Centre, IN 133111 62 CNT-NORTHCHINA CERNET New Technology Co., Ltd, CN 45090 37 TENCENT-NET-AP Shenzhen Tencent Computer Systems Company Lim 61468 32 CEDIA, EC 37963 23 ALIBABA-CN-NET Hangzhou Alibaba Advertising Co.,Ltd., CN 262156 16 Universidad Nacional de Rosario, AR 327687 16 RENU, UG 3477 15 NOAA-NWAVE, US 24151 15 CNNIC-CRITICAL-AP China Internet Network Infomation Center, 2018 13 TENET-1, ZA 4608 13 APNIC-SERVICES Asia Pacific Network Information Centre, AU 680 11 DFN Verein zur Foerderung eines Deutschen Forschungsnetzes e 559 10 SWITCH Peering requests: peering@switch.ch, CH 1916 10 Rede Nacional de Ensino e Pesquisa, BR 7575 10 AARNET-AS-AP Australian Academic and Research Network AARNet 58834 10 GCABLENET Guangdong Cable Corporation Limited, CN 6262 9 CSIRO Commonwealth Scientific and Industrial, AU 134715 9 DRUKREN-MOIC-AS Ministry of Information & Communications Thi End of report