Report for 48901

Name

DSNET-CSP - DSNET Ltd, 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.

48901 DSNET-CSP - DSNET Ltd, GB

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS20712         AS20712 - Andrews & Arnold Ltd, GB

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
32934 AS48901        ORIGIN  Originate:       1280 /21.68  Transit:          0 /0.00  DSNET-CSP - DSNET Ltd, 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       %
16921 AS48901       DSNET-CSP - DSNET Ltd, GB                          4      2      0      2      2  50.00%


  Prefix               AS Path                              Aggregation Suggestion
  81.90.134.0/24       4608 7575 20712 48901   
  81.90.136.0/23       4608 7575 20712 48901   
  81.90.136.0/24       4608 7575 20712 48901 - Withdrawn - matching aggregate 81.90.136.0/23 4608 7575 20712 48901
  81.90.137.0/24       4608 7575 20712 48901 - Withdrawn - matching aggregate 81.90.136.0/23 4608 7575 20712 48901

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

AS48901   4 More Specifics   4 Total Advertisements   DSNET-CSP - DSNET Ltd, GB
    81.90.134.0/24                81.90.128.0/20
    81.90.136.0/23                81.90.128.0/20
    81.90.136.0/24                81.90.128.0/20
    81.90.137.0/24                81.90.128.0/20

Whois Entry

whois: 402609

IANA has recorded AS48901 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS48901\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 'AS47870 - AS49384'
             
             as-block:       AS47870 - AS49384
             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:        2025-07-09T08:51:07Z
             last-modified:  2025-07-09T08:51:07Z
             source:         RIPE
             
             % Information related to 'AS48901'
             
             % Abuse contact for 'AS48901' is 'ripe-abuse@dsnethosting.com'
             
             aut-num:        AS48901
             as-name:        DSNET-CSP
             org:            ORG-DHL1-RIPE
             import:         from AS25048 accept ANY
             export:         to AS25048 announce AS-DSNET-CSP
             import:         from AS20712 accept ANY
             export:         to AS20712 announce AS-DSNET-CSP
             admin-c:        SS1724-RIPE
             tech-c:         SS1724-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         DSNH-MNT
             created:        2016-02-17T11:15:17Z
             last-modified:  2018-09-04T11:45:04Z
             source:         RIPE
             
             organisation:   ORG-DHL1-RIPE
             org-name:       DSNET Ltd
             country:        GB
             reg-nr:         04273676
             org-type:       LIR
             address:        Office 340, 5 High Street,
             address:        SL6 1JN
             address:        Maidenhead, Berkshire
             address:        UNITED KINGDOM
             phone:          +442071832040
             admin-c:        DSNH1-RIPE
             tech-c:         DSNH1-RIPE
             abuse-c:        DSNH1-RIPE
             mnt-ref:        RIPE-NCC-HM-MNT
             mnt-ref:        DSNH-MNT
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         DSNH-MNT
             created:        2004-04-17T12:13:49Z
             last-modified:  2026-05-13T07:31:28Z
             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 (BUSA)