Report for 21373

Name

NBB-AS, BE

AS Adjacency Report

In the context of this report "Upstream" indicates that there is an adjacent AS that lines between the BGP table collection point (in this case at AS4637) and the specified AS. Similarly, "Downstream" refers to an adjacent AS that lies beyond the specified AS. This upstream / downstream categorisation is strictly a description relative topology, and should not be confused with provider / customer / peer inter-AS relationships.

21373 NBB-AS National Bank of Belgium Autonomous System

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS8220    COLT COLT Telecommunications

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
5654  AS21373  ORIGIN  Originate:      12544 /18.39  Transit:          0 /0.00  NBB-AS National Bank of Belgium Autonomous System

Aggregation Suggestions

        Filter: Aggregates, Specifics

This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.

 Rank AS            AS Name                                      Current  Wthdw  Aggte  Annce Redctn       %
  755 AS21373 NBB-AS National Bank of Belgium Autonomo     20     18      0      2     18  90.00%


  Prefix               AS Path                              Aggregation Suggestion
  193.53.48.0/20       4637 3356 8220 21373   
  193.53.48.0/21       4637 3356 8220 21373 - Withdrawn - matching aggregate 193.53.48.0/20 4637 3356 8220 21373
  193.53.48.0/24       4637 3356 8220 21373 - Withdrawn - matching aggregate 193.53.48.0/20 4637 3356 8220 21373
  193.53.49.0/24       4637 3356 8220 21373 - Withdrawn - matching aggregate 193.53.48.0/20 4637 3356 8220 21373
  193.53.50.0/24       4637 3356 8220 21373 - Withdrawn - matching aggregate 193.53.48.0/20 4637 3356 8220 21373
  193.53.51.0/24       4637 3356 8220 21373 - Withdrawn - matching aggregate 193.53.48.0/20 4637 3356 8220 21373
  193.53.52.0/24       4637 3356 8220 21373 - Withdrawn - matching aggregate 193.53.48.0/20 4637 3356 8220 21373
  193.53.53.0/24       4637 3356 8220 21373 - Withdrawn - matching aggregate 193.53.48.0/20 4637 3356 8220 21373
  193.53.54.0/24       4637 3356 8220 21373 - Withdrawn - matching aggregate 193.53.48.0/20 4637 3356 8220 21373
  193.53.55.0/24       4637 3356 8220 21373 - Withdrawn - matching aggregate 193.53.48.0/20 4637 3356 8220 21373
  193.53.56.0/21       4637 3356 8220 21373 - Withdrawn - matching aggregate 193.53.48.0/20 4637 3356 8220 21373
  193.53.56.0/24       4637 3356 8220 21373 - Withdrawn - matching aggregate 193.53.48.0/20 4637 3356 8220 21373
  193.53.57.0/24       4637 3356 8220 21373 - Withdrawn - matching aggregate 193.53.48.0/20 4637 3356 8220 21373
  193.53.58.0/24       4637 3356 8220 21373 - Withdrawn - matching aggregate 193.53.48.0/20 4637 3356 8220 21373
  193.53.59.0/24       4637 3356 8220 21373 - Withdrawn - matching aggregate 193.53.48.0/20 4637 3356 8220 21373
  193.53.60.0/24       4637 3356 8220 21373 - Withdrawn - matching aggregate 193.53.48.0/20 4637 3356 8220 21373
  193.53.61.0/24       4637 3356 8220 21373 - Withdrawn - matching aggregate 193.53.48.0/20 4637 3356 8220 21373
  193.53.62.0/24       4637 3356 8220 21373 - Withdrawn - matching aggregate 193.53.48.0/20 4637 3356 8220 21373
  193.53.63.0/24       4637 3356 8220 21373 - Withdrawn - matching aggregate 193.53.48.0/20 4637 3356 8220 21373
  212.35.118.0/24      4637 3356 8220 21373   

Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.

AS21373   18 More Specifics   19 Total Advertisements   NBB-AS National Bank of Belgium Autonomous System
    193.53.48.0/21                193.53.48.0/20
    193.53.48.0/24                193.53.48.0/20
    193.53.49.0/24                193.53.48.0/20
    193.53.50.0/24                193.53.48.0/20
    193.53.51.0/24                193.53.48.0/20
    193.53.52.0/24                193.53.48.0/20
    193.53.53.0/24                193.53.48.0/20
    193.53.54.0/24                193.53.48.0/20
    193.53.55.0/24                193.53.48.0/20
    193.53.56.0/21                193.53.48.0/20
    193.53.56.0/24                193.53.48.0/20
    193.53.57.0/24                193.53.48.0/20
    193.53.58.0/24                193.53.48.0/20
    193.53.59.0/24                193.53.48.0/20
    193.53.60.0/24                193.53.48.0/20
    193.53.61.0/24                193.53.48.0/20
    193.53.62.0/24                193.53.48.0/20
    193.53.63.0/24                193.53.48.0/20

Whois Entry

whois: 402332

IANA has recorded AS21373 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.net -r "AS21373\n             % [whois.apnic.net]
             % Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html
             
             %ERROR:101: no entries found
             %
             % No entries found in source APNIC,JPNIC,KRNIC,TWNIC,IDNIC,IRINN-GRS.
             
             % This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU4)