Report for 50743

Name

COMMENSUS-LTD-AS, 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.

50743 COMMENSUS-LTD-AS, GB

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS47474         VIRTUAL1, GB

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
45294 AS50743        ORIGIN  Originate:        768 /22.42  Transit:          0 /0.00  COMMENSUS-LTD-AS, 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       %
23016 AS50743       COMMENSUS-LTD-AS, GB                               3      2      1      2      1  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  91.205.249.0/24      4608 7575 13285 13285 47474 50743   
  91.205.250.0/23      4608 7575 13285 13285 47474 50743 + Announce - aggregate of 91.205.250.0/24 (4608 7575 13285 13285 47474 50743) and 91.205.251.0/24 (4608 7575 13285 13285 47474 50743)
  91.205.250.0/24      4608 7575 13285 13285 47474 50743 - Withdrawn - aggregated with 91.205.251.0/24 (4608 7575 13285 13285 47474 50743)
  91.205.251.0/24      4608 7575 13285 13285 47474 50743 - Withdrawn - aggregated with 91.205.250.0/24 (4608 7575 13285 13285 47474 50743)

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

AS50743   3 More Specifics   3 Total Advertisements   COMMENSUS-LTD-AS, GB
    91.205.249.0/24               91.205.248.0/22
    91.205.250.0/24               91.205.248.0/22
    91.205.251.0/24               91.205.248.0/22
    91.205.248.0/24               91.205.248.0/22

Prefixes added and withdrawn by this origin AS in the past 7 days.

    - 91.205.248.0/24             Withdrawn

Whois Entry

whois: 402332

IANA has recorded AS50743 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS50743\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 'AS50220 - AS50841'
             
             as-block:       AS50220 - AS50841
             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:        2024-08-12T14:10:44Z
             last-modified:  2024-08-12T14:10:44Z
             source:         RIPE
             
             % Information related to 'AS50743'
             
             % Abuse contact for 'AS50743' is 'service.alerts@commensus.com'
             
             aut-num:        AS50743
             as-name:        Commensus-Ltd-AS
             org:            ORG-CA939-RIPE
             import:         from AS47474 accept ANY
             import:         from AS174 accept ANY
             export:         to AS47474 announce AS50743
             export:         to AS174 announce AS50743
             admin-c:        KB540-RIPE
             tech-c:         KB540-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         COGENT-HM-MNT
             mnt-by:         commensus-mnt
             created:        2010-03-18T10:56:10Z
             last-modified:  2021-11-04T17:25:15Z
             source:         RIPE # Filtered
             sponsoring-org: ORG-GATI1-RIPE
             
             organisation:   ORG-CA939-RIPE
             org-name:       Commensus Limited
             country:        GB
             org-type:       OTHER
             address:        Century House, Station Way, Cheam SM3 8SW
             reg-nr:         06461835
             abuse-c:        AR28540-RIPE
             mnt-ref:        COGENT-HM-MNT
             mnt-by:         COGENT-HM-MNT
             created:        2008-09-29T10:53:43Z
             last-modified:  2026-04-29T06:02:49Z
             source:         RIPE # Filtered
             
             %ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
             %
             % Queries from your IP address have passed the daily limit of controlled objects.
             % Access from your host has been temporarily denied.
             % For more information, see
             % https://docs.db.ripe.net/FAQ#why-did-i-receive-an-error-201-access-denied
             
             % This query was served by the RIPE Database Query Service version 1.122 (ABERDEEN)