Report for 203258

Name

UCNS-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.

203258 UCNS-AS, GB

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS174           COGENT-174 - Cogent Communications, LLC, US
    AS196881        LIBERTY-AS, GB

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
34050 AS203258       ORIGIN  Originate:       1280 /21.68  Transit:          0 /0.00  UCNS-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       %
18700 AS203258      UCNS-AS, GB                                        5      4      2      3      2  40.00%


  Prefix               AS Path                              Aggregation Suggestion
  178.21.32.0/23       4777 2516 174 203258 + Announce - aggregate of 178.21.32.0/24 (4777 2516 174 203258) and 178.21.33.0/24 (4777 2516 174 203258)
  178.21.32.0/24       4777 2516 174 203258 - Withdrawn - aggregated with 178.21.33.0/24 (4777 2516 174 203258)
  178.21.33.0/24       4777 2516 174 203258 - Withdrawn - aggregated with 178.21.32.0/24 (4777 2516 174 203258)
  178.21.34.0/24       4608 7575 196881 203258   
  178.21.38.0/23       4777 2516 3257 196881 203258 + Announce - aggregate of 178.21.38.0/24 (4777 2516 3257 196881 203258) and 178.21.39.0/24 (4777 2516 3257 196881 203258)
  178.21.38.0/24       4777 2516 3257 196881 203258 - Withdrawn - aggregated with 178.21.39.0/24 (4777 2516 3257 196881 203258)
  178.21.39.0/24       4777 2516 3257 196881 203258 - Withdrawn - aggregated with 178.21.38.0/24 (4777 2516 3257 196881 203258)

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

AS203258   5 More Specifics   5 Total Advertisements   UCNS-AS, GB
    178.21.32.0/24                178.21.32.0/21
    178.21.33.0/24                178.21.32.0/21
    178.21.34.0/24                178.21.32.0/21
    178.21.38.0/24                178.21.32.0/21
    178.21.39.0/24                178.21.32.0/21

Whois Entry

whois: 402332

IANA has recorded AS203258 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS203258\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 'AS203113 - AS203887'
             
             as-block:       AS203113 - AS203887
             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:        2024-11-12T15:22:00Z
             last-modified:  2024-11-12T15:22:00Z
             source:         RIPE
             
             % Information related to 'AS203258'
             
             % Abuse contact for 'AS203258' is 'sara@uc-ns.com'
             
             aut-num:        AS203258
             as-name:        UCNS-AS
             org:            ORG-UL52-RIPE
             import:         from AS174 accept ANY
             import:         from AS196881 accept ANY
             export:         to AS174 announce AS203258
             export:         to AS196881 announce AS203258
             admin-c:        jus9702-ripe
             tech-c:         jus9702-ripe
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         mnt-ucns
             created:        2016-03-08T11:29:34Z
             last-modified:  2025-06-30T12:48:11Z
             source:         RIPE
             
             organisation:   ORG-UL52-RIPE
             org-name:       UCNS Limited
             country:        GB
             org-type:       LIR
             address:        Gillette Studios
                             101 Syon Lane
             address:        TW7 5LW
             address:        Isleworth
             address:        UNITED KINGDOM
             phone:          +442037739702
             abuse-c:        AC28967-RIPE
             admin-c:        jus9702-ripe
             admin-c:        sjo9702-ripe
             mnt-ref:        RIPE-NCC-HM-MNT
             mnt-ref:        mnt-ucns
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         MNT-UCNS
             descr:          UCNS Limited
             tech-c:         jus9702-ripe
             created:        2010-03-01T16:07:29Z
             last-modified:  2021-10-23T15:50:53Z
             source:         RIPE # Filtered
             
             %ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
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             % Access from your host has been temporarily denied.
             % For more information, see
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             % This query was served by the RIPE Database Query Service version 1.121.2 (ABERDEEN)