Report for 205409

Name

BE-CONFBOUW, BE

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.

205409 BE-CONFBOUW, BE

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS5488          BELGACOM Proximus Customer Edge-Network, BE

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
40164 AS205409       ORIGIN  Originate:       1024 /22.00  Transit:          0 /0.00  BE-CONFBOUW, BE

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       %
13911 AS205409      BE-CONFBOUW, BE                                    4      4      1      1      3  75.00%


  Prefix               AS Path                              Aggregation Suggestion
  185.219.96.0/22      4777 2497 3356 5432 5488 205409 + Announce - aggregate of 185.219.96.0/23 (4777 2497 3356 5432 5488 205409) and 185.219.98.0/23 (4777 2497 3356 5432 5488 205409)
  185.219.96.0/24      4777 2497 3356 5432 5488 205409 - Withdrawn - aggregated with 185.219.97.0/24 (4777 2497 3356 5432 5488 205409)
  185.219.97.0/24      4777 2497 3356 5432 5488 205409 - Withdrawn - aggregated with 185.219.96.0/24 (4777 2497 3356 5432 5488 205409)
  185.219.98.0/24      4777 2497 3356 5432 5488 205409 - Withdrawn - aggregated with 185.219.99.0/24 (4777 2497 3356 5432 5488 205409)
  185.219.99.0/24      4777 2497 3356 5432 5488 205409 - Withdrawn - aggregated with 185.219.98.0/24 (4777 2497 3356 5432 5488 205409)

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

AS205409   4 More Specifics   4 Total Advertisements   BE-CONFBOUW, BE
    185.219.96.0/24               185.219.96.0/22
    185.219.97.0/24               185.219.96.0/22
    185.219.98.0/24               185.219.96.0/22
    185.219.99.0/24               185.219.96.0/22

Whois Entry

whois: 402332

IANA has recorded AS205409 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS205409\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 'AS205409'
             
             % Abuse contact for 'AS205409' is 'itsupport@confederatiebouw.be'
             
             aut-num:        AS205409
             as-name:        be-confbouw
             org:            ORG-NCVH1-RIPE
             import:         from AS48638 accept ANY
             export:         to AS48638 announce AS205409
             import:         from AS6774 accept ANY
             export:         to AS6774 announce AS205409
             admin-c:        CBIS1-RIPE
             tech-c:         CBIS1-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         be-confederatiebouw-1-mnt
             created:        2017-08-31T11:08:46Z
             last-modified:  2018-09-04T12:04:49Z
             source:         RIPE
             
             organisation:   ORG-NCVH1-RIPE
             org-name:       Embuild VZW
             country:        BE
             org-type:       LIR
             address:        Kunstlaan 20
             address:        1000
             address:        Brussel
             address:        BELGIUM
             phone:          +32 2 545 56 00
             reg-nr:         0406.479.092
             admin-c:        CB16683-RIPE
             tech-c:         CB16683-RIPE
             abuse-c:        AR42847-RIPE
             mnt-ref:        be-confederatiebouw-1-mnt
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         be-confederatiebouw-1-mnt
             created:        2017-08-29T07:03:29Z
             last-modified:  2026-04-29T05:08:50Z
             source:         RIPE # Filtered
             
             %ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
             %
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             % 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 1.122 (ABERDEEN)