Report for 20701

Name

CZNIC-AS3 - CZ.NIC, z.s.p.o., 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 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.

20701 CZNIC-AS3, CZ

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS25192         CZNIC-AS, CZ

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
48691 AS20701        ORIGIN  Originate:        512 /23.00  Transit:          0 /0.00  CZNIC-AS3, 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       %
35797 AS20701       CZNIC-AS3, CZ                                      2      0      0      2      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  185.43.135.0/24      6939 25192 20701       
  193.17.47.0/24       6939 25192 20701       

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

AS20701   1 More Specifics   2 Total Advertisements   CZNIC-AS3, CZ
    185.43.135.0/24               185.43.132.0/22

Whois Entry

whois: 402590

IANA has recorded AS20701 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS20701\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 'AS20485 - AS20857'
             
             as-block:       AS20485 - AS20857
             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:        2018-11-22T15:27:27Z
             last-modified:  2018-11-22T15:27:27Z
             source:         RIPE
             
             % Information related to 'AS20701'
             
             % Abuse contact for 'AS20701' is 'abuse@nic.cz'
             
             aut-num:        AS20701
             as-name:        CZNIC-AS3
             import:         from AS25192 accept ANY
             export:         to AS25192 announce AS20701
             org:            ORG-Cz1-RIPE
             admin-c:        CZ-RIPE
             tech-c:         CZ-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         CZ-NIC-MNT
             created:        2002-06-20T17:41:54Z
             last-modified:  2019-04-04T08:13:35Z
             source:         RIPE
             
             organisation:   ORG-Cz1-RIPE
             org-name:       CZ.NIC, z.s.p.o.
             country:        CZ
             reg-nr:         67985726
             org-type:       LIR
             address:        Milesovska 5
             address:        13000
             address:        Praha 3
             address:        CZECH REPUBLIC
             phone:          +420222745111
             fax-no:         +420222745112
             admin-c:        MP12962-RIPE
             admin-c:        JARA
             admin-c:        OF156-RIPE
             mnt-ref:        CZ-NIC-MNT
             mnt-ref:        RIPE-NCC-HM-MNT
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         CZ-NIC-MNT
             abuse-c:        CZ-RIPE
             created:        2004-04-17T11:04:42Z
             last-modified:  2026-05-13T07:30:28Z
             source:         RIPE # Filtered
             
             role:           Top level domain .CZ Operations
             address:        CZ.NIC, z.s.p.o.
             address:        Milesovska 5
             address:        Praha 3
             address:        130 00
             address:        The Czech Republic
             phone:          +420 222 745 111
             fax-no:         +420 222 745 112
             abuse-mailbox:  abuse@nic.cz
             admin-c:        OF156-RIPE
             tech-c:         MP12962-RIPE
             tech-c:         JARA
             nic-hdl:        CZ-RIPE
             mnt-by:         CZ-NIC-MNT
             created:        2003-05-16T20:14:31Z
             last-modified:  2025-10-10T09:03:19Z
             source:         RIPE # Filtered
             
             % This query was served by the RIPE Database Query Service version 1.122.1 (ABERDEEN)