Report for 51191

Name

XIRRA - Core-Backbone GmbH, DE

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.

51191 XIRRA, DE

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS33891         CORE-BACKBONE CORE-BACKBONE GMBH GLOBAL NETWORK, DE

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
12717 AS51191        ORIGIN  Originate:       7424 /19.14  Transit:          0 /0.00  XIRRA, DE

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       %
17070 AS51191       XIRRA, DE                                          8      3      1      6      2  25.00%


  Prefix               AS Path                              Aggregation Suggestion
  91.232.96.0/23       3303 33891 51191       
  130.185.104.0/21     3303 33891 51191       
  185.24.68.0/22       3303 33891 51191       
  185.108.216.0/22     3303 33891 51191       
  185.169.24.0/23      3303 33891 51191     + Announce - aggregate of 185.169.24.0/24 (3303 33891 51191) and 185.169.25.0/24 (3303 33891 51191)
  185.169.24.0/24      3303 33891 51191     - Withdrawn - aggregated with 185.169.25.0/24 (3303 33891 51191)
  185.169.25.0/24      3303 33891 51191     - Withdrawn - aggregated with 185.169.24.0/24 (3303 33891 51191)
  195.138.240.0/21     3303 33891 51191       
  195.138.244.0/24     3303 33891 51191     - Withdrawn - matching aggregate 195.138.240.0/21 3303 33891 51191

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

AS51191   4 More Specifics   8 Total Advertisements   XIRRA, DE
    185.169.24.0/24               185.169.24.0/22
    185.169.25.0/24               185.169.24.0/22
    195.138.240.0/21              195.138.240.0/20
    195.138.244.0/24              195.138.240.0/20

Whois Entry

whois: 402590

IANA has recorded AS51191 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS51191\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 'AS50893 - AS51311'
             
             as-block:       AS50893 - AS51311
             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:        2024-12-10T14:54:30Z
             last-modified:  2024-12-10T14:54:30Z
             source:         RIPE
             
             % Information related to 'AS51191'
             
             % Abuse contact for 'AS51191' is 'abuse@core-backbone.com'
             
             aut-num:        AS51191
             as-name:        XIRRA
             org:            ORG-IICG1-RIPE
             import:         from AS33891 accept ANY
             export:         to AS33891 announce AS-XIRRA
             import:         from AS199524 accept ANY
             export:         to AS199524 announce AS-XIRRA
             admin-c:        LG6981-RIPE
             tech-c:         LG6981-RIPE
             status:         ASSIGNED
             mnt-by:         RIPE-NCC-END-MNT
             mnt-by:         CORE-BACKBONE
             created:        2011-02-07T16:13:12Z
             last-modified:  2025-06-25T06:17:58Z
             source:         RIPE
             
             organisation:   ORG-IICG1-RIPE
             org-name:       Core-Backbone GmbH
             country:        DE
             reg-nr:         District court Nürnberg HRB 42754
             org-type:       LIR
             address:        Deutschherrnstr. 15-19
             address:        90429
             address:        Nürnberg
             address:        GERMANY
             phone:          +4991131043200
             admin-c:        DM2147-RIPE
             admin-c:        UK489-RIPE
             mnt-ref:        RIPE-NCC-HM-MNT
             mnt-ref:        CORE-BACKBONE
             mnt-by:         RIPE-NCC-HM-MNT
             mnt-by:         CORE-BACKBONE
             abuse-c:        CN2660-RIPE
             created:        2004-04-17T11:08:15Z
             last-modified:  2026-05-13T07:31:15Z
             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)