This is an automated weekly mailing describing the state of the IPv6 Research & Education Routing Table received by NSRC's collector from ASREN. 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 17:05 GMT Sat 25 Jul, 2026 IPv6 BGP Table (R&E) as seen at ASREN. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/ASREN/ Analysis Summary ---------------- BGP routing table entries examined: 1626 Number of IPv6 prefixes with a valid ROA: 1240 Number of IPv6 prefixes with an invalid ROA: 0 Number of IPv6 prefixes with no ROA: 386 Total ASNs present in the IPv6 Routing Table: 818 Average AS path length: 4.4 Longest AS path: 13 Total Origin ASNs present in the IPv6 Routing Table: 785 Paths with bogon ASNs present in the IPv6 Routing Table: 0 IPv6 Subnet Table ----------------- /16:0 /17:0 /18:0 /19:0 /20:0 /21:0 /22:0 /23:0 /24:1 /25:0 /26:0 /27:0 /28:4 /29:60 /30:17 /31:1 /32:385 /33:20 /34:16 /35:16 /36:43 /37:10 /38:8 /39:1 /40:87 /41:2 /42:4 /43:0 /44:78 /45:11 /46:7 /47:9 /48:846 /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 /64:0 Global IPv6 Per AS prefix count summary --------------------------------------- ASN No of Nets Description 7497 167 CSTNET-AS-AP - Computer Network Information Center of Chi 55824 88 NKN-CORE-NW - NKN Core Network, IN 4758 59 NICNET-VSNL-BOARDER-AP - National Informatics Centre, IN 45773 56 HECPERN-AS-PK - PERN AS Content Servie Provider, Islamaba 680 24 DFN - Verein zur Foerderung eines Deutschen Forschungsnet 6262 17 CSIRO - Commonwealth Scientific and Industrial, AU 22644 17 TJUH - Thomas Jefferson University Hospitals, Inc., US 24363 17 CNGI-JNN-IX-AS-AP - CERNET2 IX at Shandong University, CN 61468 17 AS61468 - CEDIA, EC 3477 16 NOAA-NWAVE - National Oceanic and Atmospheric Administrat 4608 16 APNIC-SERVICES - Asia Pacific Network Information Centre, 46047 16 POLSRI-AS-ID - Politeknik Negeri Sriwijaya, ID 683 10 ARGONNE-AS - Argonne National Laboratory, US 271 9 BCNET-AS - BCNET, CA 559 9 Switch - SWITCH, CH 7575 9 AARNET-AS-AP - Australian Academic and Research Network ( 11537 8 INTERNET2-RESEARCH-EDU - Internet2, US 12654 8 RIPE-NCC-RIS-AS - Reseaux IP Europeens Network Coordinati 56132 8 MONASHUNI-AU-AS-AP - Monash University,, AU 376 7 RISQ-AS - Reseau d'Informations Scientifiques du Quebec ( End of report