Report for 44480

Name

Brevan-Howard-AS - Brevan Howard Asset Management LLP, 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.

44480 Brevan-Howard-AS - Brevan Howard Asset Management LLP, GB

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS2856          BT-UK-AS - British Telecommunications PLC, GB
    AS8220          COLT - COLT Technology Services Group Limited, GB

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
50146 AS44480        ORIGIN  Originate:        512 /23.00  Transit:          0 /0.00  Brevan-Howard-AS - Brevan Howard Asset Management LLP, 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       %
43992 AS44480       Brevan-Howard-AS - Brevan Howard Asset Manage      2      0      0      2      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  91.199.129.0/24      4777 2497 5400 2856 44480   
  193.36.44.0/24       4777 2516 8220 44480   

Whois Entry

whois: 402591

IANA has recorded AS44480 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS44480\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 'AS44170 - AS44569'
             
             as-block:       AS44170 - AS44569
             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:        2025-01-27T15:33:09Z
             last-modified:  2025-01-27T15:33:09Z
             source:         RIPE
             
             % Information related to 'AS44480'
             
             % Abuse contact for 'AS44480' is 'abuse@colt.net'
             
             aut-num:        AS44480
             as-name:        Brevan-Howard-AS
             org:            ORG-BHAM1-RIPE
             import:         from AS8220 accept ANY
             import:         from AS15533 accept ANY
             export:         to AS8220 announce AS44480
             export:         to AS15533  announce AS44480
             admin-c:        PW1780-RIPE
             tech-c:         PW1780-RIPE
             status:         ASSIGNED
             mnt-by:         COLT-UK
             mnt-by:         RIPE-NCC-END-MNT
             created:        2008-01-25T10:47:21Z
             last-modified:  2018-09-04T10:29:54Z
             source:         RIPE # Filtered
             sponsoring-org: ORG-CI9-RIPE
             
             organisation:   ORG-BHAM1-RIPE
             org-name:       Brevan Howard Asset Management LLP
             country:        GB
             reg-nr:         OC302636
             org-type:       OTHER
             address:        55 Baker St, London, W1U 8EW
             abuse-c:        AR28637-RIPE
             mnt-ref:        COLT-UK
             mnt-by:         COLT-UK
             created:        2008-01-14T10:43:22Z
             last-modified:  2026-05-13T06:00:57Z
             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 (DEXTER)