Report for 201101

Name

NATSEN-NC, 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.

201101 NATSEN-NC, GB

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS3257          GTT-BACKBONE GTT, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
23883 AS201101       ORIGIN  Originate:       2304 /20.83  Transit:          0 /0.00  NATSEN-NC, 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       %
18654 AS201101      NATSEN-NC, GB                                      7      4      2      5      2  28.57%


  Prefix               AS Path                              Aggregation Suggestion
  159.197.28.0/23      4777 2516 3257 201101 201101 201101   
  159.197.28.0/23      4777 2516 3257 201101 201101 + Announce - aggregate of 159.197.28.0/24 (4777 2516 3257 201101 201101) and 159.197.29.0/24 (4777 2516 3257 201101 201101)
  159.197.28.0/24      4777 2516 3257 201101 201101 - Withdrawn - aggregated with 159.197.29.0/24 (4777 2516 3257 201101 201101)
  159.197.29.0/24      4777 2516 3257 201101 201101 - Withdrawn - aggregated with 159.197.28.0/24 (4777 2516 3257 201101 201101)
  159.197.32.0/23      4777 2516 3257 201101 201101 201101   
  159.197.32.0/23      4777 2516 3257 201101 201101 + Announce - aggregate of 159.197.32.0/24 (4777 2516 3257 201101 201101) and 159.197.33.0/24 (4777 2516 3257 201101 201101)
  159.197.32.0/24      4777 2516 3257 201101 201101 - Withdrawn - aggregated with 159.197.33.0/24 (4777 2516 3257 201101 201101)
  159.197.33.0/24      4777 2516 3257 201101 201101 - Withdrawn - aggregated with 159.197.32.0/24 (4777 2516 3257 201101 201101)
  159.197.101.0/24     4777 2516 3257 201101 201101   

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

AS201101   7 More Specifics   7 Total Advertisements   NATSEN-NC, GB
    159.197.28.0/23               159.197.0.0/17
    159.197.28.0/24               159.197.0.0/17
    159.197.29.0/24               159.197.0.0/17
    159.197.32.0/23               159.197.0.0/17
    159.197.32.0/24               159.197.0.0/17
    159.197.33.0/24               159.197.0.0/17
    159.197.101.0/24              159.197.0.0/17

Whois Entry

whois: 402332

IANA has recorded AS201101 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS201101\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 'AS200352 - AS203022'
             
             as-block:       AS200352 - AS203022
             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:        2024-10-03T13:30:54Z
             last-modified:  2024-10-03T13:30:54Z
             source:         RIPE
             
             % Information related to 'AS201101'
             
             % Abuse contact for 'AS201101' is 'soc@nats.co.uk'
             
             aut-num:        AS201101
             as-name:        NATSEN-NC
             org:            ORG-NRL5-RIPE
             import:         from AS5459 accept ANY
             export:         to AS5459 announce AS201101
             import:         from AS8075 accept ANY
             export:         to AS8075 announce AS201101
             admin-c:        MG21995-RIPE
             tech-c:         MG21995-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         uk-natsen-1-mnt
             created:        2018-07-11T12:57:41Z
             last-modified:  2018-09-04T12:16:23Z
             source:         RIPE
             
             organisation:   ORG-NRL5-RIPE
             org-name:       NATS (En Route) Ltd
             country:        GB
             org-type:       LIR
             address:        LATCC, Sopwith Way
             address:        SO31 7AY
             address:        Swanwick, Hants
             address:        UNITED KINGDOM
             phone:          +44 (0)1489 616001
             admin-c:        MG21995-RIPE
             tech-c:         MG21995-RIPE
             abuse-c:        AR35437-RIPE
             mnt-ref:        uk-natsen-1-mnt
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         uk-natsen-1-mnt
             mnt-ref:        RIPE-NCC-HM-MNT
             created:        2016-02-17T10:11:02Z
             last-modified:  2022-09-01T09:38:18Z
             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 1.121.2 (BUSA)