IPv6 R&E Routing Table Report   20:10 GMT Thu 30 Apr, 2026

  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:                                1619
    Number of IPv6 prefixes with a valid ROA:                      1078
    Number of IPv6 prefixes with an invalid ROA:                      9
    Number of IPv6 prefixes with no ROA:                            532
Total ASNs present in the IPv6 Routing Table:                       865
    Average AS path length:                                         4.8
    Longest AS path:                                                 15
Total Origin ASNs present in the IPv6 Routing Table:                815
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       /29:53      /30:16      /31:1       /32:358     /33:25      
/34:17      /35:17      /36:52      /37:13      /38:11      /39:0       
/40:109     /41:6       /42:10      /43:2       /44:63      /45:16      
/46:11      /47:9       /48:821     /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
     55824         90  NKN-CORE-NW NKN Core Network, IN
      4758         64  NICNET-VSNL-BOARDER-AP National Informatics Centre, IN
     61468         31  CEDIA, EC
      3477         26  NOAA-NWAVE - National Oceanic and Atmospheric Administrat
       680         24  DFN Verein zur Foerderung eines Deutschen Forschungsnetze
       271         20  BCNET-AS - BCNET, CA
      2152         19  CENIC-2152 - CENIC, US
      6262         17  CSIRO Commonwealth Scientific and Industrial, AU
     22644         17  TJUH - Thomas Jefferson University Hospitals, Inc., US
     46047         17  POLSRI-AS-ID Politeknik Negeri Sriwijaya, ID
      4608         16  APNIC-SERVICES Asia Pacific Network Information Centre, A
      2018         15  TENET-1, ZA
       237          9  MERIT-AS-14 - Merit Network Inc., US
       559          9  SWITCH Switch, Swiss Academic and Research Network, CH
      7575          9  AARNET-AS-AP Australian Academic and Research Network AAR
         3          8  MIT-GATEWAYS - Massachusetts Institute of Technology, US
     24090          8  UNISAINS-AS-AP Universiti Sains Malaysia USM, MY
     27947          8  Telconet S.A, EC
     30045          8  UHN-ASN - University Health Network, CA
     56132          8  MONASHUNI-AU-AS-AP Monash University, AU

End of report