Report for 204025

Name

CMD - Centre de Telecommunications et Teleinformatiques Luxembourgeois s.a., LU

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 AS6447) 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.

204025 CMD, LU

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS6939          HURRICANE, US
    AS29467         LUXNETWORK Network Service Provider in Luxembourg, LU
    AS174           COGENT-174, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
22962 AS204025       ORIGIN  Originate:       2560 /20.68  Transit:          0 /0.00  CMD, LU

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       %
18617 AS204025      CMD, LU                                            5      3      1      3      2  40.00%


  Prefix               AS Path                              Aggregation Suggestion
  185.71.56.0/22       6939 204025            
  185.71.56.0/22       2497 174 204025      + Announce - aggregate of 185.71.56.0/23 (2497 174 204025) and 185.71.58.0/23 (2497 174 204025)
  185.71.56.0/23       2497 174 204025      - Withdrawn - aggregated with 185.71.58.0/23 (2497 174 204025)
  185.71.58.0/23       2497 174 204025      - Withdrawn - aggregated with 185.71.56.0/23 (2497 174 204025)
  185.71.58.0/24       2497 174 204025 204025 204025   
  185.71.59.0/24       2497 174 204025      - Withdrawn - matching aggregate 185.71.58.0/23 2497 174 204025

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

AS204025   5 More Specifics   6 Total Advertisements   CMD, LU
    185.71.56.0/23                185.71.56.0/22
    185.71.58.0/23                185.71.56.0/22
    185.71.58.0/24                185.71.56.0/22
    185.71.59.0/24                185.71.56.0/22
    185.226.20.0/24               185.226.20.0/22

Whois Entry

whois: 402603

IANA has recorded AS204025 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS204025\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 'AS204025'
             
             % Abuse contact for 'AS204025' is 'noc@cttl.lu'
             
             aut-num:        AS204025
             as-name:        CMD
             org:            ORG-CDTE1-RIPE
             import:         from AS197264 accept ANY
             export:         to AS197264 announce AS204025
             import:         from AS174 accept ANY
             export:         to AS174 announce AS204025
             admin-c:        CTT13-RIPE
             admin-c:        SD10749-RIPE
             tech-c:         SD10749-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         CTTL
             created:        2015-09-11T13:42:34Z
             last-modified:  2022-11-22T16:38:14Z
             source:         RIPE
             
             organisation:   ORG-CDTE1-RIPE
             org-name:       Centre de Telecommunications et Teleinformatiques Luxembourgeois s.a.
             country:        LU
             reg-nr:         B33061
             org-type:       LIR
             address:        5, Rue Christophe Plantin
             address:        L - 2339
             address:        Luxembourg
             address:        Luxembourg
             phone:          +35227676767
             fax-no:         +35227676799
             mnt-ref:        RIPE-NCC-HM-MNT
             mnt-ref:        CTTL
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         CTTL
             abuse-c:        CNOC21-RIPE
             tech-c:         CTT13-RIPE
             created:        2014-03-03T10:05:17Z
             last-modified:  2026-05-13T07:35:25Z
             source:         RIPE # Filtered
             admin-c:        VL9925-RIPE
             admin-c:        CTT13-RIPE
             
             %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 (ABERDEEN)