Report for 21301

Name

UK-NATWEST-AS21301 EDINBURGH, GB

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.

21301 RBS-FM-AS AS for Royal Bank of Scotland Financial Markets, London

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS1273    CW Cable & Wireless
    AS702     AS702 Verizon Business EMEA - Commercial IP service provider in Europe

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
12320 AS21301  ORIGIN  Originate:       2048 /21.00  Transit:          0 /0.00  RBS-FM-AS AS for Royal Bank of Scotland Financial Markets, London

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       %
 3198 AS21301 RBS-FM-AS AS for Royal Bank of Scotland       5      4      1      2      3  60.00%


  Prefix               AS Path                              Aggregation Suggestion
  147.114.224.0/22     4637 1273 21301        
  147.114.224.0/24     4637 1273 21301      - Withdrawn - matching aggregate 147.114.224.0/22 4637 1273 21301
  147.114.225.0/24     4637 1273 21301      - Withdrawn - matching aggregate 147.114.224.0/22 4637 1273 21301
  147.114.226.0/23     4637 3491 701 702 21301 + Announce - aggregate of 147.114.226.0/24 (4637 3491 701 702 21301) and 147.114.227.0/24 (4637 3491 701 702 21301)
  147.114.226.0/24     4637 3491 701 702 21301 - Withdrawn - aggregated with 147.114.227.0/24 (4637 3491 701 702 21301)
  147.114.227.0/24     4637 3491 701 702 21301 - Withdrawn - aggregated with 147.114.226.0/24 (4637 3491 701 702 21301)

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

AS21301   5 More Specifics   5 Total Advertisements   RBS-FM-AS AS for Royal Bank of Scotland Financial Markets, London
    147.114.224.0/22              147.114.0.0/16
    147.114.224.0/24              147.114.0.0/16
    147.114.225.0/24              147.114.0.0/16
    147.114.226.0/24              147.114.0.0/16
    147.114.227.0/24              147.114.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS21301 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.net -r "AS21301\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)