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

Wed Apr 16 20:11:30 UTC 2025

IPv6 R&E Routing Table Report   20:10 GMT Wed 16 Apr, 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:                                1726
    Number of IPv6 prefixes with a valid ROA:                      1059
    Number of IPv6 prefixes with an invalid ROA:                      9
    Number of IPv6 prefixes with no ROA:                            658
Total ASNs present in the IPv6 Routing Table:                       906
    Average AS path length:                                         4.9
    Longest AS path:                                                 16
Total Origin ASNs present in the IPv6 Routing Table:                866
Paths with bogon ASNs present in the IPv6 Routing Table:              2

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       /29:54      /30:16      /31:0       /32:380     /33:33      
/34:18      /35:11      /36:63      /37:4       /38:16      /39:2       
/40:113     /41:6       /42:6       /43:2       /44:111     /45:17      
/46:11      /47:12      /48:840     /49:0       /50:0       /51:0       
/52:1       /53:0       /54:0       /55:0       /56:0       /57:0       
/58:0       /59:0       /60:2       /61:0       /62:0       /63:0       
/64:0       

Global IPv6 Per AS prefix count summary
---------------------------------------

       ASN No of Nets  Description
     55824         93  NKN-CORE-NW NKN Core Network, IN
      4758         64  NICNET-VSNL-BOARDER-AP National Informatics Centre, IN
     45773         64  HECPERN-AS-PK PERN AS Content Servie Provider, Islamabad,
     61468         32  CEDIA, EC
      3477         23  NOAA-NWAVE, US
       680         22  DFN Verein zur Foerderung eines Deutschen Forschungsnetze
      2152         18  CENIC-2152, US
     46047         17  POLSRI-AS-ID Politeknik Negeri Sriwijaya, ID
      6262         16  CSIRO Commonwealth Scientific and Industrial, AU
       683         12  ARGONNE-AS, US
      2018         11  TENET-1, ZA
       271          9  BCNET-AS, CA
       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
    134715          9  GTA-AS-AP Government Technology Agency, BT
         3          8  MIT-GATEWAYS, US
       237          8  MERIT-AS-14, US
     30045          8  UHN-ASN, CA
         4          7  ISI-AS, US

End of report