Report for 210546

Name

CHSL-ONE, 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.

210546 CHSL-ONE, GB

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS49418         AS-NETSHIELD, GB

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
26953 AS210546       ORIGIN  Originate:       2048 /21.00  Transit:          0 /0.00  CHSL-ONE, 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       %
14389 AS210546      CHSL-ONE, GB                                       8      6      3      5      3  37.50%


  Prefix               AS Path                              Aggregation Suggestion
  2.27.50.0/23         4777 2497 1299 30823 49418 210546 + Announce - aggregate of 2.27.50.0/24 (4777 2497 1299 30823 49418 210546) and 2.27.51.0/24 (4777 2497 1299 30823 49418 210546)
  2.27.50.0/24         4777 2497 1299 30823 49418 210546 - Withdrawn - aggregated with 2.27.51.0/24 (4777 2497 1299 30823 49418 210546)
  2.27.51.0/24         4777 2497 1299 30823 49418 210546 - Withdrawn - aggregated with 2.27.50.0/24 (4777 2497 1299 30823 49418 210546)
  77.91.70.0/24        4777 2497 1299 30823 49418 210546   
  144.31.132.0/23      4777 2516 6762 30823 49418 210546 + Announce - aggregate of 144.31.132.0/24 (4777 2516 6762 30823 49418 210546) and 144.31.133.0/24 (4777 2516 6762 30823 49418 210546)
  144.31.132.0/24      4777 2516 6762 30823 49418 210546 - Withdrawn - aggregated with 144.31.133.0/24 (4777 2516 6762 30823 49418 210546)
  144.31.133.0/24      4777 2516 6762 30823 49418 210546 - Withdrawn - aggregated with 144.31.132.0/24 (4777 2516 6762 30823 49418 210546)
  144.31.184.0/23      4777 2516 6762 30823 49418 210546 + Announce - aggregate of 144.31.184.0/24 (4777 2516 6762 30823 49418 210546) and 144.31.185.0/24 (4777 2516 6762 30823 49418 210546)
  144.31.184.0/24      4777 2516 6762 30823 49418 210546 - Withdrawn - aggregated with 144.31.185.0/24 (4777 2516 6762 30823 49418 210546)
  144.31.185.0/24      4777 2516 6762 30823 49418 210546 - Withdrawn - aggregated with 144.31.184.0/24 (4777 2516 6762 30823 49418 210546)
  178.236.244.0/24     4777 2516 6762 30823 49418 210546   

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

AS210546   8 More Specifics   8 Total Advertisements   CHSL-ONE, GB
    2.27.50.0/24                  2.26.0.0/15
    2.27.51.0/24                  2.26.0.0/15
    77.91.70.0/24                 77.91.64.0/20
    144.31.132.0/24               144.31.0.0/16
    144.31.133.0/24               144.31.0.0/16
    144.31.184.0/24               144.31.0.0/16
    144.31.185.0/24               144.31.0.0/16
    178.236.244.0/24              178.236.240.0/20

Whois Entry

whois: 402332

IANA has recorded AS210546 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS210546\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 'AS208189 - AS214345'
             
             as-block:       AS208189 - AS214345
             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:        2026-02-12T14:40:05Z
             last-modified:  2026-02-12T14:40:05Z
             source:         RIPE
             
             % Information related to 'AS210546'
             
             % Abuse contact for 'AS210546' is 'abuse@chsl.one'
             
             aut-num:        AS210546
             as-name:        CHSL-ONE
             org:            ORG-CHSL3-RIPE
             sponsoring-org: ORG-NL628-RIPE
             import:         from AS49418 accept ANY
             export:         to AS49418 announce AS210546
             admin-c:        CHSL2-RIPE
             tech-c:         CHSL2-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         CHSL-MNT
             created:        2026-02-04T10:33:30Z
             last-modified:  2026-02-04T11:41:32Z
             source:         RIPE
             
             organisation:   ORG-CHSL3-RIPE
             org-name:       CHSL ONE LTD
             country:        GB
             org-type:       OTHER
             address:        128 City Road
             address:        EC1V 2NX
             address:        London
             address:        UNITED KINGDOM
             admin-c:        CHSL2-RIPE
             tech-c:         CHSL2-RIPE
             abuse-c:        CHSL2-RIPE
             mnt-ref:        netshield-mnt
             mnt-ref:        CHSL-MNT
             mnt-by:         CHSL-MNT
             created:        2026-01-31T01:43:22Z
             last-modified:  2026-01-31T01:43:22Z
             source:         RIPE # Filtered
             
             role:           CHSL ONE LTD
             address:        128 City Road
             address:        EC1V 2NX
             address:        London
             address:        UNITED KINGDOM
             abuse-mailbox:  abuse@chsl.one
             nic-hdl:        CHSL2-RIPE
             created:        2026-01-31T01:35:42Z
             last-modified:  2026-01-31T01:41:01Z
             source:         RIPE # Filtered
             mnt-ref:        CHSL-MNT
             mnt-by:         CHSL-MNT
             
             % Information related to 'PLK14-RIPE'
             
             role:           AS210546 NOC
             address:        02000, Ukraine, Kyiv, Leontovycha Street 7
             abuse-mailbox:  abuse@waf.group
             nic-hdl:        PLK14-RIPE
             mnt-by:         AS210546-MNT
             created:        2022-03-06T01:37:53Z
             last-modified:  2025-02-10T22:47:13Z
             source:         RIPE # Filtered
             
             % This query was served by the RIPE Database Query Service version 1.121.2 (DEXTER)