Report for 199569

Name

Cognizant-EU-AS - Cognizant Worldwide 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 AS6447) 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.

199569 COGNIZANT-EU-AS, GB

  Adjacency:     4  Upstream:     3  Downstream:     1
  Upstream Adjacent AS list
    AS5580          GTT-ASIA, NL
    AS3356          LEVEL3, US
    AS6461          ZAYO-6461, US
  Downstream Adjacent AS list
    AS17903         COGNIZANT-IN-AP Cognizant Technology Solutions India Pvt Ltd, IN

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
39836 AS199569       ORG+TRN Originate:       1024 /22.00  Transit:        512 /23.00 COGNIZANT-EU-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       %
26815 AS199569      COGNIZANT-EU-AS, GB                                2      2      1      1      1  50.00%


  Prefix               AS Path                              Aggregation Suggestion
  185.9.172.0/22       2497 6461 199569     + Announce - aggregate of 185.9.172.0/23 (2497 6461 199569) and 185.9.174.0/23 (2497 6461 199569)
  185.9.172.0/23       2497 6461 199569     - Withdrawn - aggregated with 185.9.174.0/23 (2497 6461 199569)
  185.9.174.0/23       2497 6461 199569     - Withdrawn - aggregated with 185.9.172.0/23 (2497 6461 199569)

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

AS199569   2 More Specifics   2 Total Advertisements   COGNIZANT-EU-AS, GB
    185.9.172.0/23                185.9.172.0/22
    185.9.174.0/23                185.9.172.0/22

Whois Entry

whois: 402603

IANA has recorded AS199569 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS199569\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 'AS199178 - AS200350'
             
             as-block:       AS199178 - AS200350
             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:        2025-11-24T15:16:53Z
             last-modified:  2025-11-24T15:16:53Z
             source:         RIPE
             
             % Information related to 'AS199569'
             
             % Abuse contact for 'AS199569' is 'david.ripa@cognizant.com'
             
             aut-num:        AS199569
             as-name:        Cognizant-EU-AS
             org:            ORG-CTSU1-RIPE
             import:         from AS11690 accept ANY
             import:         from AS5580 accept ANY
             export:         to AS11690 announce AS199569
             export:         to AS5580 announce AS199569
             admin-c:        jp2336-RIPE
             tech-c:         jp2336-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         cognizant-dc-eu-mnt
             created:        2012-11-22T11:29:23Z
             last-modified:  2018-09-04T11:17:02Z
             source:         RIPE
             
             organisation:   ORG-CTSU1-RIPE
             org-name:       Cognizant Worldwide Limited
             country:        GB
             reg-nr:         07195160
             org-type:       LIR
             address:        1 Kingdom Street
             address:        W2 6BD
             address:        London
             address:        UNITED KINGDOM
             phone:          +1 978 701 7057
             abuse-c:        AR17569-RIPE
             mnt-ref:        RIPE-NCC-HM-MNT
             mnt-ref:        cognizant-dc-eu-mnt
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         cognizant-dc-eu-mnt
             admin-c:        JP2336-RIPE
             created:        2012-10-29T10:56:03Z
             last-modified:  2026-05-13T07:18:00Z
             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
             % 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)