Report for 50510

Name

CRUK-AS - Cancer Research UK, 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.

50510 CRUK-AS - Cancer Research UK, GB

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS6461          ZAYO-6461 - Zayo Bandwidth, US
    AS25180         EXPONENTIAL-E-AS - Exponential-E Ltd., GB

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
36660 AS50510        ORIGIN  Originate:       1024 /22.00  Transit:          0 /0.00  CRUK-AS - Cancer Research UK, 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       %
46830 AS50510       CRUK-AS - Cancer Research UK, GB                   4      0      0      4      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  143.65.192.0/24      4777 2497 6461 50510   
  143.65.196.0/24      4777 2497 6461 50510   
  143.65.201.0/24      4608 7575 1299 25180 50510   
  143.65.206.0/24      4608 7575 1299 25180 50510   

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

AS50510   4 More Specifics   4 Total Advertisements   CRUK-AS - Cancer Research UK, GB
    143.65.192.0/24               143.65.192.0/19
    143.65.196.0/24               143.65.192.0/19
    143.65.201.0/24               143.65.192.0/19
    143.65.206.0/24               143.65.192.0/19

Whois Entry

whois: 402603

IANA has recorded AS50510 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS50510\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 'AS50510'
             
             % Abuse contact for 'AS50510' is 'abuse@ncuk.net'
             
             aut-num:        AS50510
             as-name:        CRUK-AS
             org:            ORG-CRU1-RIPE
             import:         from AS8220 accept ANY
             import:         from AS6461 accept ANY
             import:         from AS3561 accept ANY
             export:         to AS8220 announce AS-CRUK
             export:         to AS6461 announce AS-CRUK
             export:         to AS3561 announce AS-CRUK
             admin-c:        SB11893-RIPE
             tech-c:         SK4723-RIPE
             tech-c:         SS12595-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         CRUK-MNT
             mnt-by:         NETCONNEX-MNT
             created:        2010-02-01T15:43:03Z
             last-modified:  2018-09-04T10:48:15Z
             source:         RIPE
             sponsoring-org: ORG-NBL2-RIPE
             
             organisation:   ORG-CRU1-RIPE
             org-name:       Cancer Research UK
             country:        GB
             reg-nr:         04325234
             org-type:       OTHER
             address:        2 Redman Place
             address:        Stratford
             address:        London
             address:        E20 1JQ
             address:        United Kingdom
             abuse-c:        AR23982-RIPE
             mnt-ref:        cruk-mnt
             mnt-by:         cruk-mnt
             created:        2009-11-27T10:30:57Z
             last-modified:  2026-05-13T06:05:59Z
             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 1.122.1 (ABERDEEN)