Report for 204394

Name

CORTEX - Cortex, a.s., 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.

204394 CORTEX - Cortex, a.s., 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
40016 AS204394       ORIGIN  Originate:       1024 /22.00  Transit:          0 /0.00  CORTEX - Cortex, a.s., 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       %
62695 AS204394      CORTEX - Cortex, a.s., CZ                          1      0      0      1      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  185.250.100.0/22     4777 2497 1299 6855 204394   

Whois Entry

whois: 402603

IANA has recorded AS204394 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS204394\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 'AS204394'
             
             % Abuse contact for 'AS204394' is 'abuse@cortex.cz'
             
             aut-num:        AS204394
             as-name:        CORTEX
             org:            ORG-CA1874-RIPE
             import:         from AS5588 accept ANY
             export:         to AS5588 announce AS204394
             import:         from AS16019 accept ANY
             export:         to AS16019 announce AS204394
             admin-c:        MV80-RIPE
             tech-c:         MV80-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         cz-cortex-1-mnt
             created:        2018-03-20T08:41:33Z
             last-modified:  2020-08-17T12:58:05Z
             source:         RIPE
             
             organisation:   ORG-CA1874-RIPE
             org-name:       Cortex, a.s.
             country:        CZ
             reg-nr:         47125616
             org-type:       LIR
             address:        U Elektry 974/1c
             address:        19000
             address:        Prague
             address:        CZECH REPUBLIC
             phone:          +420266610466
             admin-c:        MV13462-RIPE
             tech-c:         MV13462-RIPE
             abuse-c:        AR45584-RIPE
             mnt-ref:        cz-cortex-1-mnt
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         cz-cortex-1-mnt
             created:        2018-03-19T07:24:18Z
             last-modified:  2026-05-13T07:10:44Z
             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 (SHETLAND)