[REN-BGP-stats-all] IPv6 R&E Routing Table Report - CERNET (R&E) view

Thu Jun 26 20:11:08 UTC 2025

IPv6 R&E Routing Table Report   20:10 GMT Thu 26 Jun, 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:                                1550
    Number of IPv6 prefixes with a valid ROA:                       985
    Number of IPv6 prefixes with an invalid ROA:                      9
    Number of IPv6 prefixes with no ROA:                            556
Total ASNs present in the IPv6 Routing Table:                       781
    Average AS path length:                                         4.3
    Longest AS path:                                                 15
Total Origin ASNs present in the IPv6 Routing Table:                735
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       /24:2       /25:0       /26:0       /27:0       
/28:5       /29:46      /30:10      /31:0       /32:335     /33:24      
/34:17      /35:15      /36:57      /37:4       /38:11      /39:2       
/40:111     /41:7       /42:9       /43:2       /44:97      /45:16      
/46:10      /47:8       /48:756     /49:0       /50:0       /51:0       
/52:1       /53:0       /54:0       /55:0       /56:1       /57:0       
/58:0       /59:0       /60:2       /61:0       /62:0       /63:0       
/64:1       

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
     45773         63  HECPERN-AS-PK PERN AS Content Servie Provider, Islamabad,
     61468         35  CEDIA, EC
      3477         24  NOAA-NWAVE, US
       680         23  DFN Verein zur Foerderung eines Deutschen Forschungsnetze
       271         19  BCNET-AS, CA
      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
      2152         15  CENIC-2152, US
      2018         14  TENET-1, ZA
     24090         11  UNISAINS-AS-AP Universiti Sains Malaysia USM, MY
       237          9  MERIT-AS-14, US
       559          9  SWITCH Peering requests: peering at switch.ch, CH
      5501          9  FRAUNHOFER-CLUSTER-BW Research Institutes spread all over
      7575          9  AARNET-AS-AP Australian Academic and Research Network AAR
         3          8  MIT-GATEWAYS, US
     30045          8  UHN-ASN, CA
     58448          8  AP-CONAC-AS-AP CONAC China Organizational Name Administra

End of report