Report for 57912

Name

ASYST-AS, BG

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.

57912 ASYST-AS, BG

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS8262          EVOLINK-AS, BG
    AS57344         TELEHOUSE-AS, BG

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
30641 AS57912        ORIGIN  Originate:       1536 /21.42  Transit:          0 /0.00  ASYST-AS, BG

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       %
23665 AS57912       ASYST-AS, BG                                       6      2      1      5      1  16.67%


  Prefix               AS Path                              Aggregation Suggestion
  77.76.12.0/24        4777 2516 6830 57344 57912   
  82.119.87.0/24       4777 2497 3257 8262 57912   
  91.236.144.0/23      4777 2516 3257 8262 57912 + Announce - aggregate of 91.236.144.0/24 (4777 2516 3257 8262 57912) and 91.236.145.0/24 (4777 2516 3257 8262 57912)
  91.236.144.0/24      4777 2516 3257 8262 57912 - Withdrawn - aggregated with 91.236.145.0/24 (4777 2516 3257 8262 57912)
  91.236.145.0/24      4777 2516 3257 8262 57912 - Withdrawn - aggregated with 91.236.144.0/24 (4777 2516 3257 8262 57912)
  91.236.146.0/24      4777 2516 3257 8262 57912   
  91.236.147.0/24      4777 2497 3257 8262 57912   

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

AS57912   6 More Specifics   6 Total Advertisements   ASYST-AS, BG
    77.76.12.0/24                 77.76.0.0/20
    82.119.87.0/24                82.119.64.0/19
    91.236.144.0/24               91.236.144.0/22
    91.236.145.0/24               91.236.144.0/22
    91.236.146.0/24               91.236.144.0/22
    91.236.147.0/24               91.236.144.0/22

Whois Entry

whois: 402332

IANA has recorded AS57912 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS57912\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 'AS57370 - AS57973'
             
             as-block:       AS57370 - AS57973
             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:        2025-04-24T14:15:44Z
             last-modified:  2025-04-24T14:15:44Z
             source:         RIPE
             
             % Information related to 'AS57912'
             
             % Abuse contact for 'AS57912' is 'abuse@evolink.com'
             
             aut-num:        AS57912
             as-name:        ASYST-AS
             org:            ORG-AE20-RIPE
             import:         from AS8262 action pref=100; accept ANY
             export:         to AS8262 announce AS57912
             import:         from AS39220 action pref=200; accept ANY
             export:         to AS39220 announce AS57912
             import:         from AS8390 action pref=100; accept ANY
             export:         to AS8390 announce AS57912
             admin-c:        PA4013-RIPE
             tech-c:         PA4013-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         ASYST-MNT
             created:        2012-03-13T09:22:15Z
             last-modified:  2018-09-04T11:10:04Z
             source:         RIPE
             sponsoring-org: ORG-NAL1-RIPE
             
             organisation:   ORG-AE20-RIPE
             org-name:       Asyst EOOD
             country:        BG
             org-type:       OTHER
             address:        ul. Luben Karavelov 9
             address:        Montana, Bulgaria
             reg-nr:         111015442
             abuse-c:        AR25199-RIPE
             phone:          +359 96 30 60 60
             admin-c:        PA4013-RIPE
             tech-c:         PA4013-RIPE
             mnt-by:         ASYST-MNT
             mnt-ref:        ASYST-MNT
             created:        2012-02-22T15:23:12Z
             last-modified:  2026-04-29T06:16:26Z
             source:         RIPE # Filtered
             
             %ERROR:201: access denied for 2401:2000:6660:0:0:0:0:13
             %
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             % Access from your host has been temporarily denied.
             % For more information, see
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             % This query was served by the RIPE Database Query Service version 1.122 (BUSA)