Report for 12761

Name

COLT-CORP-IT - COLT Technology Services Group Limited, 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 AS2.0) 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.

12761 COLT-CORP-IT - COLT Technology Services Group Limited, GB

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS8220          COLT - COLT Technology Services Group Limited, GB

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
30011 AS12761        ORIGIN  Originate:       1536 /21.42  Transit:          0 /0.00  COLT-CORP-IT - COLT Technology Services Group Limited, GB

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       %
11973 AS12761       COLT-CORP-IT - COLT Technology Services Group      6      4      1      3      3  50.00%


  Prefix               AS Path                              Aggregation Suggestion
  193.118.162.0/24     4608 7575 8220 12761   
  193.118.164.0/24     4608 7575 8220 12761 12761 12761   
  217.111.164.0/22     4777 2516 8220 12761 + Announce - aggregate of 217.111.164.0/23 (4777 2516 8220 12761) and 217.111.166.0/23 (4777 2516 8220 12761)
  217.111.164.0/24     4777 2516 8220 12761 - Withdrawn - aggregated with 217.111.165.0/24 (4777 2516 8220 12761)
  217.111.165.0/24     4777 2516 8220 12761 - Withdrawn - aggregated with 217.111.164.0/24 (4777 2516 8220 12761)
  217.111.166.0/24     4777 2516 8220 12761 - Withdrawn - aggregated with 217.111.167.0/24 (4777 2516 8220 12761)
  217.111.167.0/24     4777 2516 8220 12761 - Withdrawn - aggregated with 217.111.166.0/24 (4777 2516 8220 12761)

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

AS12761   6 More Specifics   6 Total Advertisements   COLT-CORP-IT - COLT Technology Services Group Limited, GB
    193.118.162.0/24              193.118.160.0/20
    193.118.164.0/24              193.118.160.0/20
    217.111.164.0/24              217.110.0.0/15
    217.111.165.0/24              217.110.0.0/15
    217.111.166.0/24              217.110.0.0/15
    217.111.167.0/24              217.110.0.0/15

Whois Entry

whois: 402591

IANA has recorded AS12761 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS12761\n