Report for 51824

Name

ALTERNATIVA-NET, UA

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.

51824 ALTERNATIVA-NET, UA

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS43668         BIGNET-AS, UA

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
36725 AS51824        ORIGIN  Originate:       1024 /22.00  Transit:          0 /0.00  ALTERNATIVA-NET, UA

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       %
47212 AS51824       ALTERNATIVA-NET, UA                                2      0      0      2      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  91.221.84.0/23       4777 2516 3257 43668 51824   
  192.162.196.0/23     4777 2516 3257 43668 51824   

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

AS51824   1 More Specifics   2 Total Advertisements   ALTERNATIVA-NET, UA
    192.162.196.0/23              192.162.196.0/22

Whois Entry

whois: 402332

IANA has recorded AS51824 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS51824\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 'AS51819 - AS51843'
             
             as-block:       AS51819 - AS51843
             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:        2026-02-02T15:31:00Z
             last-modified:  2026-02-02T15:31:00Z
             source:         RIPE
             
             % Information related to 'AS51824'
             
             % Abuse contact for 'AS51824' is 'abuse@ispalternativa.net.ua'
             
             aut-num:        AS51824
             as-name:        ALTERNATIVA-NET
             remarks:        ISP ALTERNATIVA
             org:            ORG-FA368-RIPE
             import:         from AS43668 accept ANY
             import:         from AS48648 accept {0.0.0.0/0}
             import:         from AS21219 accept ANY
             export:         to AS43668 announce AS51824
             export:         to AS48648 announce AS51824
             export:         to AS21219 announce AS51824
             remarks:
             remarks:        Abuse reports: noc@ispalternativa.net.ua
             remarks:        NOC: noc@ispalternativa.net.ua
             remarks:        www: http://ispalternativa.net.ua
             remarks:
             admin-c:        NMIA-RIPE
             tech-c:         NMIA-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         MNT-ALTERNATIVA
             created:        2010-11-25T15:15:07Z
             last-modified:  2018-10-11T09:47:03Z
             source:         RIPE
             sponsoring-org: ORG-KL211-RIPE
             
             organisation:   ORG-FA368-RIPE
             org-name:       PE NIKOLAYENKO NIKOLAY IVANOVICH
             country:        UA
             org-type:       OTHER
             address:        Ukraine 04108, Kiev, Prospekt Pravdy b.33 ap 270
             reg-nr:         Not Applicable
             abuse-c:        AR19349-RIPE
             mnt-ref:        MNT-ALTERNATIVA
             mnt-by:         MNT-ALTERNATIVA
             created:        2010-11-05T12:01:24Z
             last-modified:  2026-04-29T05:54:41Z
             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 (ABERDEEN)