Report for 211029

Name

XTX, 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.

211029 XTX, GB

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS8220          COLT COLT Technology Services Group Limited, GB
    AS2914          NTT-DATA-2914 - NTT America, Inc., US
    AS3257          GTT-BACKBONE GTT, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
29893 AS211029       ORIGIN  Originate:       1792 /21.19  Transit:          0 /0.00  XTX, 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       %
27995 AS211029      XTX, GB                                            4      1      0      3      1  25.00%


  Prefix               AS Path                              Aggregation Suggestion
  185.253.244.0/22     4777 2516 3257 211029   
  185.253.245.0/24     4777 2516 3257 211029 - Withdrawn - matching aggregate 185.253.244.0/22 4777 2516 3257 211029
  185.253.246.0/24     4777 2497 2914 211029   
  185.253.247.0/24     4777 2497 3257 211029   

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

AS211029   3 More Specifics   4 Total Advertisements   XTX, GB
    185.253.245.0/24              185.253.244.0/22
    185.253.246.0/24              185.253.244.0/22
    185.253.247.0/24              185.253.244.0/22

Whois Entry

whois: 402332

IANA has recorded AS211029 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS211029\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 'AS211029'
             
             % Abuse contact for 'AS211029' is 'infra-ripe@xtxmarkets.com'
             
             aut-num:        AS211029
             as-name:        XTX
             org:            ORG-XML1-RIPE
             admin-c:        II1430-RIPE
             tech-c:         II1430-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         uk-xtxmarkets-1-mnt
             created:        2021-07-15T12:31:04Z
             last-modified:  2024-01-09T11:35:17Z
             source:         RIPE
             
             organisation:   ORG-XML1-RIPE
             org-name:       XTX Markets Limited
             country:        GB
             org-type:       LIR
             address:        14-18 Handyside Street
             address:        N1C 4DN
             address:        London
             address:        UNITED KINGDOM
             phone:          +44 20 3198 3300
             admin-c:        II1430-RIPE
             tech-c:         II1430-RIPE
             abuse-c:        AR45862-RIPE
             mnt-ref:        uk-xtxmarkets-1-mnt
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         uk-xtxmarkets-1-mnt
             created:        2018-04-04T14:11:41Z
             last-modified:  2023-12-13T07:54:57Z
             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
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             % This query was served by the RIPE Database Query Service version 1.121.2 (SHETLAND)