Report for 43417

Name

Borusan_Holding - Borusan Holding A.S., TR

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.

43417 Borusan_Holding - Borusan Holding A.S., TR

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS15924         BORUSANTELEKOM-AS - Vodafone Net Iletisim Hizmetler AS, TR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
23306 AS43417        ORIGIN  Originate:       2304 /20.83  Transit:          0 /0.00  Borusan_Holding - Borusan Holding A.S., TR

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       %
10319 AS43417       Borusan_Holding - Borusan Holding A.S., TR         6      4      0      2      4  66.67%


  Prefix               AS Path                              Aggregation Suggestion
  5.252.4.0/22         4608 7575 3356 15924 43417   
  5.252.4.0/24         4608 7575 3356 15924 43417 - Withdrawn - matching aggregate 5.252.4.0/22 4608 7575 3356 15924 43417
  5.252.5.0/24         4608 7575 3356 15924 43417 - Withdrawn - matching aggregate 5.252.4.0/22 4608 7575 3356 15924 43417
  5.252.6.0/24         4608 7575 3356 15924 43417 - Withdrawn - matching aggregate 5.252.4.0/22 4608 7575 3356 15924 43417
  5.252.7.0/24         4608 7575 3356 15924 43417 - Withdrawn - matching aggregate 5.252.4.0/22 4608 7575 3356 15924 43417
  193.238.25.0/24      4777 2516 35280 55002 15924 43417   

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

AS43417   4 More Specifics   6 Total Advertisements   Borusan_Holding - Borusan Holding A.S., TR
    5.252.4.0/24                  5.252.4.0/22
    5.252.5.0/24                  5.252.4.0/22
    5.252.6.0/24                  5.252.4.0/22
    5.252.7.0/24                  5.252.4.0/22

Whois Entry

whois: 402603

IANA has recorded AS43417 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS43417\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 'AS43075 - AS44168'
             
             as-block:       AS43075 - AS44168
             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:        2023-12-11T15:09:58Z
             last-modified:  2023-12-11T15:09:58Z
             source:         RIPE
             
             % Information related to 'AS43417'
             
             % Abuse contact for 'AS43417' is 'networkteam@borusan.com'
             
             aut-num:        AS43417
             as-name:        Borusan_Holding
             org:            ORG-BHA29-RIPE
             import:         from AS15924 accept ANY
             import:         from AS34984 accept ANY
             import:         from AS9121 accept ANY
             export:         to AS15924 announce AS43417
             export:         to AS34984 announce AS43417
             export:         to AS9121 announce AS43417
             admin-c:        GK6443-RIPE
             tech-c:         GK6443-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         BORUSANDANISMANLIK
             created:        2012-04-05T08:21:10Z
             last-modified:  2020-02-11T08:47:16Z
             source:         RIPE
             
             organisation:   ORG-BHA29-RIPE
             org-name:       Borusan Holding A.S.
             country:        TR
             reg-nr:         118068
             org-type:       LIR
             address:        Pürtela? Hasan Efendi Mah. Meclis-i
                             Mebusan Cad. No: 35 ?ç Kap? No: 3
             address:        34470
             address:        istanbul
             address:        TURKEY
             phone:          +905448845887
             admin-c:        GK6443-RIPE
             tech-c:         GK6443-RIPE
             abuse-c:        AR50496-RIPE
             mnt-ref:        BORUSANDANISMANLIK
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         BORUSANDANISMANLIK
             created:        2019-01-29T08:09:07Z
             last-modified:  2026-05-13T07:39:58Z
             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 (SHETLAND)