Report for 51653

Name

PRESNET-AS - PRESNET s.r.o., SK

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.

51653 PRESNET-AS, SK

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS48326         DATANETWORKS, SK
    AS29405         VNET-AS, SK

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
9707  AS51653        ORIGIN  Originate:      11264 /18.54  Transit:          0 /0.00  PRESNET-AS, SK

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       %
 8956 AS51653       PRESNET-AS, SK                                    19      8      3     14      5  26.32%


  Prefix               AS Path                              Aggregation Suggestion
  158.255.248.0/21     3303 48326 51653       
  158.255.249.0/24     6939 48326 51653       
  158.255.250.0/23     6939 48326 51653     + Announce - aggregate of 158.255.250.0/24 (6939 48326 51653) and 158.255.251.0/24 (6939 48326 51653)
  158.255.250.0/24     6939 48326 51653     - Withdrawn - aggregated with 158.255.251.0/24 (6939 48326 51653)
  158.255.251.0/24     6939 48326 51653     - Withdrawn - aggregated with 158.255.250.0/24 (6939 48326 51653)
  158.255.252.0/23     6939 48326 51653     + Announce - aggregate of 158.255.252.0/24 (6939 48326 51653) and 158.255.253.0/24 (6939 48326 51653)
  158.255.252.0/24     6939 48326 51653     - Withdrawn - aggregated with 158.255.253.0/24 (6939 48326 51653)
  158.255.253.0/24     6939 48326 51653     - Withdrawn - aggregated with 158.255.252.0/24 (6939 48326 51653)
  178.18.64.0/20       3303 48326 51653       
  178.18.64.0/24       6939 48326 48326 48326 51653   
  178.18.66.0/24       6939 48326 51653       
  178.18.67.0/24       6939 48326 48326 48326 51653   
  178.18.68.0/22       6939 48326 48326 48326 51653 + Announce - aggregate of 178.18.68.0/23 (6939 48326 48326 48326 51653) and 178.18.70.0/23 (6939 48326 48326 48326 51653)
  178.18.68.0/24       6939 48326 48326 48326 51653 - Withdrawn - aggregated with 178.18.69.0/24 (6939 48326 48326 48326 51653)
  178.18.69.0/24       6939 48326 48326 48326 51653 - Withdrawn - aggregated with 178.18.68.0/24 (6939 48326 48326 48326 51653)
  178.18.70.0/24       6939 48326 48326 48326 51653 - Withdrawn - aggregated with 178.18.71.0/24 (6939 48326 48326 48326 51653)
  178.18.71.0/24       6939 48326 48326 48326 51653 - Withdrawn - aggregated with 178.18.70.0/24 (6939 48326 48326 48326 51653)
  178.18.73.0/24       6939 48326 48326 48326 51653   
  178.18.75.0/24       6939 48326 51653       
  178.18.77.0/24       6939 48326 51653       
  185.139.224.0/22     6939 48326 51653       
  194.156.68.0/24      6939 48326 51653       

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

AS51653   9 More Specifics   11 Total Advertisements   PRESNET-AS, SK
    158.255.248.0/24              158.255.248.0/21
    158.255.249.0/24              158.255.248.0/21
    158.255.250.0/24              158.255.248.0/21
    158.255.251.0/24              158.255.248.0/21
    158.255.252.0/24              158.255.248.0/21
    158.255.253.0/24              158.255.248.0/21
    178.18.66.0/24                178.18.64.0/20
    178.18.75.0/24                178.18.64.0/20
    178.18.77.0/24                178.18.64.0/20

Prefixes added and withdrawn by this origin AS in the past 7 days.

    + 158.255.248.0/24            Announced

Whois Entry

whois: 402590

IANA has recorded AS51653 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS51653\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 'AS51357 - AS51817'
             
             as-block:       AS51357 - AS51817
             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:        2025-02-13T13:57:44Z
             last-modified:  2025-02-13T13:57:44Z
             source:         RIPE
             
             % Information related to 'AS51653'
             
             % Abuse contact for 'AS51653' is 'radovan.jakubko@presnet.sk'
             
             aut-num:        AS51653
             as-name:        PRESNET-AS
             org:            ORG-Ps66-RIPE
             import:         from AS31117 accept ANY
             export:         to AS31117 announce AS51653
             import:         from AS48326 accept ANY
             export:         to AS48326 announce AS51653
             import:         from AS197398 accept ANY
             export:         to AS197398 announce ANY
             admin-c:        RJ1744-RIPE
             tech-c:         RJ1744-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         PRES-MNT
             created:        2010-10-14T11:28:00Z
             last-modified:  2020-11-29T13:21:07Z
             source:         RIPE
             
             organisation:   ORG-Ps66-RIPE
             org-name:       PRESNET s.r.o.
             country:        SK
             reg-nr:         36 694 231
             org-type:       LIR
             address:        Strojnicka 2434/1
             address:        08006
             address:        Presov
             address:        SLOVAKIA
             phone:          +421512909091
             fax-no:         +421517700539
             abuse-c:        AR17290-RIPE
             mnt-ref:        RIPE-NCC-HM-MNT
             mnt-ref:        PRES-MNT
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         PRES-MNT
             created:        2010-03-04T12:23:14Z
             last-modified:  2026-05-13T07:22:00Z
             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 (DEXTER)