Report for 203952

Name

NS-AS-2, NL

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.

203952 NS-AS-2, NL

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS24785         JOINTTRANSIT-AS, NL
    AS32787         PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NETWORK - Akamai Technologies, Inc., US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
20497 AS203952       ORIGIN  Originate:       3072 /20.42  Transit:          0 /0.00  NS-AS-2, NL

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       %
18717 AS203952      NS-AS-2, NL                                        5      4      2      3      2  40.00%


  Prefix               AS Path                              Aggregation Suggestion
  145.15.40.0/23       4777 32787 203952    + Announce - aggregate of 145.15.40.0/24 (4777 32787 203952) and 145.15.41.0/24 (4777 32787 203952)
  145.15.40.0/24       4777 32787 203952    - Withdrawn - aggregated with 145.15.41.0/24 (4777 32787 203952)
  145.15.41.0/24       4777 32787 203952    - Withdrawn - aggregated with 145.15.40.0/24 (4777 32787 203952)
  145.15.64.0/21       4777 2516 6830 24785 203952   
  145.15.112.0/23      4777 32787 203952    + Announce - aggregate of 145.15.112.0/24 (4777 32787 203952) and 145.15.113.0/24 (4777 32787 203952)
  145.15.112.0/24      4777 32787 203952    - Withdrawn - aggregated with 145.15.113.0/24 (4777 32787 203952)
  145.15.113.0/24      4777 32787 203952    - Withdrawn - aggregated with 145.15.112.0/24 (4777 32787 203952)

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

AS203952   5 More Specifics   5 Total Advertisements   NS-AS-2, NL
    145.15.40.0/24                145.15.0.0/15
    145.15.41.0/24                145.15.0.0/15
    145.15.64.0/21                145.15.0.0/15
    145.15.112.0/24               145.15.0.0/15
    145.15.113.0/24               145.15.0.0/15

Whois Entry

whois: 402332

IANA has recorded AS203952 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS203952\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 'AS203940 - AS205662'
             
             as-block:       AS203940 - AS205662
             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:        2026-03-05T15:29:31Z
             last-modified:  2026-03-05T15:29:31Z
             source:         RIPE
             
             % Information related to 'AS203952'
             
             % Abuse contact for 'AS203952' is 'abuse@kpn.com'
             
             aut-num:        AS203952
             as-name:        NS-AS-2
             org:            ORG-NGN3-RIPE
             import:         from AS1136 accept ANY
             export:         to AS1136 announce AS203952
             import:         from AS24785 accept ANY
             export:         to AS24785 announce AS203952
             admin-c:        KZI-RIPE
             tech-c:         KZI-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         KPNCM-MNT
             created:        2015-09-25T16:43:12Z
             last-modified:  2025-06-13T06:32:50Z
             source:         RIPE
             sponsoring-org: ORG-KOVN1-RIPE
             
             organisation:   ORG-NGN3-RIPE
             org-name:       NS Groep N.V.
             country:        NL
             org-type:       OTHER
             address:        Laan van Puntenburg 100, 3511ER Utrecht
             abuse-c:        AC32622-RIPE
             mnt-ref:        KPNCM-MNT
             mnt-by:         KPNCM-MNT
             created:        2014-03-17T11:30:43Z
             last-modified:  2022-12-01T17:20:43Z
             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 1.121.2 (SHETLAND)