Report for 203208

Name

CTU_AS4_2 - Czech Telecommunication Office, CZ

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.

203208 CTU_AS4_2 - Czech Telecommunication Office, CZ

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS6855          SK-TELEKOM - Slovak Telekom, a.s., SK

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
46484 AS203208       ORIGIN  Originate:        768 /22.42  Transit:          0 /0.00  CTU_AS4_2 - Czech Telecommunication Office, CZ

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       %
62064 AS203208      CTU_AS4_2 - Czech Telecommunication Office, C      2      0      0      2      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  185.68.212.0/23      4777 2516 3320 6855 203208   
  185.68.214.0/24      4777 2516 3320 6855 203208   

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

AS203208   2 More Specifics   2 Total Advertisements   CTU_AS4_2 - Czech Telecommunication Office, CZ
    185.68.212.0/23               185.68.212.0/22
    185.68.214.0/24               185.68.212.0/22

Whois Entry

whois: 402603

IANA has recorded AS203208 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS203208\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 'AS203113 - AS203887'
             
             as-block:       AS203113 - AS203887
             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:        2024-11-12T15:22:00Z
             last-modified:  2024-11-12T15:22:00Z
             source:         RIPE
             
             % Information related to 'AS203208'
             
             % Abuse contact for 'AS203208' is 'schmieds@ctu.cz'
             
             aut-num:        AS203208
             as-name:        CTU_AS4_2
             org:            ORG-CTO1-RIPE
             import:         from AS5588 accept ANY
             export:         to AS5588 announce AS203208
             import:         from AS12767 accept ANY
             export:         to AS12767 announce AS203208
             admin-c:        SS41216-RIPE
             tech-c:         JK16414-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         SUPER-CTU
             created:        2016-03-08T14:32:58Z
             last-modified:  2025-07-04T09:55:24Z
             source:         RIPE
             
             organisation:   ORG-CTO1-RIPE
             org-name:       Czech Telecommunication Office
             country:        CZ
             reg-nr:         Not Applicable
             org-type:       LIR
             address:        Sokolovska 219
             address:        19000
             address:        Prague
             address:        CZECH REPUBLIC
             phone:          +420224004601
             fax-no:         +420224004827
             abuse-c:        AC28632-RIPE
             mnt-ref:        SUPER-CTU
             mnt-ref:        RIPE-NCC-HM-MNT
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         SUPER-CTU
             created:        2014-08-11T09:41:33Z
             last-modified:  2026-05-13T07:13:32Z
             source:         RIPE # Filtered
             admin-c:        SS41216-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 (BUSA)