This is an automated weekly mailing describing the state of the IPv6 Research & Education Routing Table received by NSRC's collector from Uni of Guam. 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 21:25 GMT Sat 27 Dec, 2025 IPv6 BGP Table (R&E) as seen at Uni of Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/UniGuam/ Analysis Summary ---------------- BGP routing table entries examined: 2201 Number of IPv6 prefixes with a valid ROA: 1613 Number of IPv6 prefixes with an invalid ROA: 0 Number of IPv6 prefixes with no ROA: 588 Total ASNs present in the IPv6 Routing Table: 568 Average AS path length: 4.6 Longest AS path: 16 Total Origin ASNs present in the IPv6 Routing Table: 523 Paths with bogon ASNs present in the IPv6 Routing Table: 4 IPv6 Subnet Table ----------------- /16:0 /17:0 /18:0 /19:0 /20:0 /21:0 /22:0 /23:0 /24:2 /25:0 /26:0 /27:0 /28:5 /29:54 /30:7 /31:0 /32:218 /33:15 /34:8 /35:12 /36:49 /37:51 /38:35 /39:1 /40:107 /41:2 /42:92 /43:12 /44:158 /45:5 /46:196 /47:65 /48:1001 /49:4 /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 /63:1 /64:5 Global IPv6 Per AS prefix count summary --------------------------------------- ASN No of Nets Description 16509 893 AMAZON-02, US 7497 164 CSTNET-AS-AP Computer Network Information Center of Chine 46375 95 AS-SONICTELECOM, US 3573 55 ACCENTURE, US 61468 35 CEDIA, EC 4766 25 KIXS-AS-KR Korea Telecom, KR 3477 24 NOAA-NWAVE, US 680 23 DFN Verein zur Foerderung eines Deutschen Forschungsnetze 3360 17 DXC-AS3360, 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 8220 14 COLT COLT Technology Services Group Limited, GB 237 9 MERIT-AS-14, US 559 9 SWITCH Switch, Swiss Academic and Research Network, CH 7575 9 AARNET-AS-AP Australian Academic and Research Network AAR 15404 9 COLT Technology Services Group, GB 20940 9 AKAMAI-ASN1, NL 12222 8 AKAMAI, US End of report