Report for 21503

Name

--No AS Description--

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.

21503 ARETE-AS Nocom Networks AB

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS5400    BT BT European Backbone

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
5119  AS21503  ORIGIN  Originate:      16384 /18.00  Transit:          0 /0.00  ARETE-AS Nocom Networks AB

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       %
 5444 AS21503 ARETE-AS Nocom Networks AB                    3      2      1      2      1  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  80.252.160.0/19      4637 5400 21503 21503 21503 + Announce - aggregate of 80.252.160.0/20 (4637 5400 21503 21503 21503) and 80.252.176.0/20 (4637 5400 21503 21503 21503)
  80.252.160.0/20      4637 5400 21503 21503 21503 - Withdrawn - aggregated with 80.252.176.0/20 (4637 5400 21503 21503 21503)
  80.252.176.0/20      4637 5400 21503 21503 21503 - Withdrawn - aggregated with 80.252.160.0/20 (4637 5400 21503 21503 21503)
  213.179.0.0/19       4637 5400 21503 21503 21503   

Whois Entry

whois: 402603

IANA has recorded AS21503 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21503\n             % This is the RIPE Database query service.
             % The objects are in RPSL format.
             %
             % The RIPE Database is subject to Terms and Conditions.
             % See https://docs.db.ripe.net/terms-conditions.html
             
             % Note: this output has been filtered.
             
             % Information related to 'AS21453 - AS21503'
             
             as-block:       AS21453 - AS21503
             descr:          RIPE NCC ASN block
             remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
             mnt-by:         RIPE-NCC-HM-MNT
             created:        2018-11-22T15:27:28Z
             last-modified:  2018-11-22T15:27:28Z
             source:         RIPE
             
             % This query was served by the RIPE Database Query Service version 1.122.1 (DEXTER)