Report for 21308

Name

ITMUA-AS, 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.

21308 ITMUA-AS, UA

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS29107         SYNAPSE-AS, GB

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
48538 AS21308        ORIGIN  Originate:        512 /23.00  Transit:          0 /0.00  ITMUA-AS, 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       %
21026 AS21308       ITMUA-AS, UA                                       2      2      1      1      1  50.00%


  Prefix               AS Path                              Aggregation Suggestion
  193.239.142.0/23     4777 6939 6698 29107 21308 + Announce - aggregate of 193.239.142.0/24 (4777 6939 6698 29107 21308) and 193.239.143.0/24 (4777 6939 6698 29107 21308)
  193.239.142.0/24     4777 6939 6698 29107 21308 - Withdrawn - aggregated with 193.239.143.0/24 (4777 6939 6698 29107 21308)
  193.239.143.0/24     4777 6939 6698 29107 21308 - Withdrawn - aggregated with 193.239.142.0/24 (4777 6939 6698 29107 21308)

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

AS21308   2 More Specifics   2 Total Advertisements   ITMUA-AS, UA
    193.239.142.0/24              193.239.142.0/23
    193.239.143.0/24              193.239.142.0/23

Whois Entry

whois: 402332

IANA has recorded AS21308 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21308\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 'AS21281 - AS21390'
             
             as-block:       AS21281 - AS21390
             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:        2018-11-22T15:27:28Z
             last-modified:  2018-11-22T15:27:28Z
             source:         RIPE
             
             % Information related to 'AS21308'
             
             % Abuse contact for 'AS21308' is 'Abuse@synapse.net.ua'
             
             aut-num:        AS21308
             as-name:        ITMUA-AS
             org:            ORG-SUL41-RIPE
             import:         from AS29107 accept ANY
             export:         to AS29107 announce AS21308
             sponsoring-org: ORG-LW50-RIPE
             admin-c:        CHEG-RIPE
             tech-c:         CHEG-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         SYNAPSE-MNT
             created:        2015-07-22T13:09:31Z
             last-modified:  2026-04-16T09:48:16Z
             source:         RIPE
             
             organisation:   ORG-SUL41-RIPE
             org-name:       Synapse Ukraine LLC
             country:        UA
             org-type:       OTHER
             address:        04112, Kyiv, Degtyarivska st 50
             reg-nr:         31721222
             abuse-c:        ACRO57182-RIPE
             mnt-ref:        ua-merezha-1-mnt
             mnt-ref:        SYNAPSE-MNT
             created:        2026-03-31T11:59:47Z
             last-modified:  2026-04-29T07:29:42Z
             source:         RIPE # Filtered
             mnt-by:         ua-merezha-1-mnt
             mnt-by:         SYNAPSE-MNT
             
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             % Access from your host has been temporarily denied.
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