IPv6 R&E Routing Table Report 20:10 GMT Fri 10 Oct, 2025 IPv6 BGP Table (R&E) as seen at CERNET. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CERNET/ Analysis Summary ---------------- BGP routing table entries examined: 1572 Number of IPv6 prefixes with a valid ROA: 963 Number of IPv6 prefixes with an invalid ROA: 9 Number of IPv6 prefixes with no ROA: 600 Total ASNs present in the IPv6 Routing Table: 850 Average AS path length: 5.0 Longest AS path: 16 Total Origin ASNs present in the IPv6 Routing Table: 806 Paths with bogon ASNs present in the IPv6 Routing Table: 1 IPv6 Subnet Table ----------------- /16:0 /17:0 /18:0 /19:0 /20:1 /21:0 /22:0 /23:0 /24:3 /25:0 /26:0 /27:0 /28:5 /29:46 /30:8 /31:0 /32:355 /33:22 /34:15 /35:13 /36:62 /37:4 /38:11 /39:2 /40:113 /41:8 /42:10 /43:2 /44:70 /45:16 /46:11 /47:9 /48:783 /49:0 /50:0 /51:0 /52:0 /53:0 /54:0 /55:0 /56:1 /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 55824 95 NKN-CORE-NW NKN Core Network, IN 4758 64 NICNET-VSNL-BOARDER-AP National Informatics Centre, IN 61468 34 CEDIA, EC 3477 25 NOAA-NWAVE, US 680 23 DFN Verein zur Foerderung eines Deutschen Forschungsnetze 271 19 BCNET-AS, CA 2152 18 CENIC-2152, US 6262 17 CSIRO Commonwealth Scientific and Industrial, AU 46047 17 POLSRI-AS-ID Politeknik Negeri Sriwijaya, ID 4608 16 APNIC-SERVICES Asia Pacific Network Information Centre, A 2018 14 TENET-1, ZA 683 13 ARGONNE-AS, US 7575 10 AARNET-AS-AP Australian Academic and Research Network AAR 237 9 MERIT-AS-14, US 559 9 SWITCH Switch, Swiss Academic and Research Network, CH 3 8 MIT-GATEWAYS, US 30045 8 UHN-ASN, CA 4 7 ISI-AS, US 376 7 RISQ-AS, CA 786 7 JANET Jisc Services Limited, GB End of report