Report for 47720

Name

CIX-AS - Cork Internet Exchange Limited, IE

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.

47720 CIX-AS - Cork Internet Exchange Limited, IE

  Adjacency:     9  Upstream:     2  Downstream:     7
  Upstream Adjacent AS list
    AS1273          CW - IDDQD-AS, EU
    AS3257          GTT-BACKBONE - GTT Communications Inc., US
  Downstream Adjacent AS list
    AS196737        AIRWAVE - Airwave Internet, IE
    AS205967        TTS-IE-AS - Sleepless Server Solutions Ltd., IE
    AS201902        BICOM - Bicom Systems Limited, GB
    AS44358         DOMREG-ANY-AS - Kauno Technologijos Universitetas, LT
    AS42953         INEX-CORK - Internet Neutral Exchange Association Company Limited By Guarantee, IE
    AS15405         EASTCORK-AS - East Cork Broadband Limited, IE
    AS43192         imedia-AS - Ajisko Ltd t/a Integrated Media Solutions, IE

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
6871  AS47720        ORG+TRN Originate:      19968 /17.71  Transit:      11520 /18.51 CIX-AS - Cork Internet Exchange Limited, IE

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       %
16645 AS47720       CIX-AS - Cork Internet Exchange Limited, IE       14      3      1     12      2  14.29%


  Prefix               AS Path                              Aggregation Suggestion
  45.140.144.0/24      4777 2497 1273 47720   
  84.39.232.0/21       4777 2516 3257 47720   
  89.31.168.0/21       4777 2497 1273 47720   
  91.103.0.0/21        4777 2516 3257 47720   
  91.223.9.0/24        4777 2497 1273 47720   
  185.49.60.0/22       4777 2497 1273 47720   
  185.57.116.0/22      4777 2516 1273 47720   
  185.137.20.0/22      4777 2497 3257 47720   
  185.175.168.0/22     4777 2497 1273 47720   
  185.176.0.0/22       4777 2516 1273 47720   
  217.74.48.0/20       4777 2516 3257 47720   
  217.74.48.0/20       4777 2497 1273 47720 + Announce - aggregate of 217.74.48.0/21 (4777 2497 1273 47720) and 217.74.56.0/21 (4777 2497 1273 47720)
  217.74.48.0/22       4777 2497 1273 47720 - Withdrawn - aggregated with 217.74.52.0/22 (4777 2497 1273 47720)
  217.74.52.0/22       4777 2497 1273 47720 - Withdrawn - aggregated with 217.74.48.0/22 (4777 2497 1273 47720)
  217.74.56.0/21       4777 2497 1273 47720 - Withdrawn - aggregated with 217.74.48.0/21 (4777 2497 1273 47720)

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

AS47720   1 More Specifics   14 Total Advertisements   CIX-AS - Cork Internet Exchange Limited, IE
    45.140.144.0/24               45.140.144.0/22

Whois Entry

whois: 402599

IANA has recorded AS47720 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS47720\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
             
             %ERROR:201: access denied for 203.119.110.26
             %
             % 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 (BUSA)