Report for 51257

Name

CERIZ - CERIZ SASU, FR

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.

51257 CERIZ - CERIZ SASU, FR

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS29075         IELO - IELO-LIAZO SERVICES SAS, FR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
64060 AS51257        ORIGIN  Originate:        256 /24.00  Transit:          0 /0.00  CERIZ - CERIZ SASU, FR

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       %
46975 AS51257       CERIZ - CERIZ SASU, FR                             1      0      0      1      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  171.22.146.0/24      4608 7575 2914 29075 51257   

Whois Entry

whois: 402603

IANA has recorded AS51257 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS51257\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 'AS50893 - AS51311'
             
             as-block:       AS50893 - AS51311
             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:        2024-12-10T14:54:30Z
             last-modified:  2024-12-10T14:54:30Z
             source:         RIPE
             
             % Information related to 'AS51257'
             
             % Abuse contact for 'AS51257' is 'jerome@fair-telecom.fr'
             
             aut-num:        AS51257
             as-name:        CERIZ
             org:            ORG-CS398-RIPE
             import:         from AS29075 accept ANY
             export:         to AS29075 announce AS-CERIZ
             admin-c:        JN2000-RIPE
             tech-c:         JN2000-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         MNT-CERIZ
             created:        2016-01-05T10:49:07Z
             last-modified:  2024-01-27T11:38:25Z
             source:         RIPE
             
             organisation:   ORG-CS398-RIPE
             org-name:       CERIZ SASU
             country:        FR
             reg-nr:         808 558 415  R.CS  PONTOISE
             org-type:       LIR
             address:        16, rue Ampère
             address:        95300
             address:        Pontoise
             address:        FRANCE
             phone:          +33619312714
             admin-c:        JN2000-RIPE
             tech-c:         JN2000-RIPE
             abuse-c:        AR34863-RIPE
             mnt-ref:        MNT-CERIZ
             mnt-ref:        RIPE-NCC-HM-MNT
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         MNT-CERIZ
             created:        2016-01-04T14:42:36Z
             last-modified:  2026-05-13T07:26:27Z
             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 (DEXTER)