Report for 206237

Name

BARCLAYS_BPS - Barclays Bank PLC, 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.

206237 BARCLAYS_BPS - Barclays Bank PLC, GB

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS2856          BT-UK-AS - British Telecommunications PLC, GB
    AS32787         PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NETWORK - Akamai Technologies, Inc., US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
20433 AS206237       ORIGIN  Originate:       3072 /20.42  Transit:          0 /0.00  BARCLAYS_BPS - Barclays Bank PLC, 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       %
14316 AS206237      BARCLAYS_BPS - Barclays Bank PLC, GB               7      4      1      4      3  42.86%


  Prefix               AS Path                              Aggregation Suggestion
  157.83.144.0/22      4777 2516 5400 2856 206237   
  157.83.144.0/22      4777 32787 206237    + Announce - aggregate of 157.83.144.0/23 (4777 32787 206237) and 157.83.146.0/23 (4777 32787 206237)
  157.83.144.0/23      4777 32787 206237    - Withdrawn - aggregated with 157.83.146.0/23 (4777 32787 206237)
  157.83.144.0/24      4777 2516 5400 2856 206237   
  157.83.145.0/24      4777 32787 206237    - Withdrawn - matching aggregate 157.83.144.0/23 4777 32787 206237
  157.83.146.0/23      4777 32787 206237    - Withdrawn - aggregated with 157.83.144.0/23 (4777 32787 206237)
  157.83.146.0/24      4777 2516 5400 2856 206237   
  157.83.147.0/24      4777 32787 206237    - Withdrawn - matching aggregate 157.83.146.0/23 4777 32787 206237

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

AS206237   7 More Specifics   7 Total Advertisements   BARCLAYS_BPS - Barclays Bank PLC, GB
    157.83.144.0/22               157.83.0.0/16
    157.83.144.0/23               157.83.0.0/16
    157.83.144.0/24               157.83.0.0/16
    157.83.145.0/24               157.83.0.0/16
    157.83.146.0/23               157.83.0.0/16
    157.83.146.0/24               157.83.0.0/16
    157.83.147.0/24               157.83.0.0/16

Whois Entry

whois: 402603

IANA has recorded AS206237 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS206237\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 'AS205664 - AS206367'
             
             as-block:       AS205664 - AS206367
             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:        2024-07-02T13:58:22Z
             last-modified:  2024-07-02T13:58:22Z
             source:         RIPE
             
             % Information related to 'AS206237'
             
             % Abuse contact for 'AS206237' is 'networkoperationsl2eme@barclays.com'
             
             aut-num:        AS206237
             as-name:        BARCLAYS_BPS
             org:            ORG-BBP6-RIPE
             import:         from AS2856 accept ANY
             export:         to AS2856 announce AS206237
             import:         from AS1273 accept ANY
             export:         to AS1273 announce AS206237
             admin-c:        BARC-RIPE
             tech-c:         BARC-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         BARCLAYS-MNT
             created:        2017-03-01T14:45:23Z
             last-modified:  2018-09-04T11:58:22Z
             source:         RIPE
             
             organisation:   ORG-BBP6-RIPE
             org-name:       Barclays Bank PLC
             country:        GB
             reg-nr:         01026167
             org-type:       LIR
             address:        1 Churchill Place
             address:        E14 5HP
             address:        LONDON
             address:        UNITED KINGDOM
             phone:          +44 (0) 845 835 0750
             abuse-c:        BLAH3-RIPE
             mnt-ref:        BC-NET-MNT
             mnt-ref:        BARCLAYS-MNT
             mnt-ref:        RIPE-NCC-HM-MNT
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         BARCLAYS-MNT
             created:        2013-06-18T10:02:26Z
             last-modified:  2026-05-13T07:21:45Z
             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 (SHETLAND)