Report for 23561

Name

YONGINUNIVERSITY-AS-KR-KR - Yongin University, KR

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.

23561 YONGINUNIVERSITY-AS-KR Yongin University, KR

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS9318          SKB-AS SK Broadband Co Ltd, KR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
18719 AS23561        ORIGIN  Originate:       3584 /20.19  Transit:          0 /0.00  YONGINUNIVERSITY-AS-KR Yongin University, KR

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       %
 5893 AS23561       YONGINUNIVERSITY-AS-KR Yongin University, KR      14     12      4      6      8  57.14%


  Prefix               AS Path                              Aggregation Suggestion
  210.119.136.0/22     37100 9318 23561     + Announce - aggregate of 210.119.136.0/23 (37100 9318 23561) and 210.119.138.0/23 (37100 9318 23561)
  210.119.136.0/24     37100 9318 23561     - Withdrawn - aggregated with 210.119.137.0/24 (37100 9318 23561)
  210.119.137.0/24     37100 9318 23561     - Withdrawn - aggregated with 210.119.136.0/24 (37100 9318 23561)
  210.119.138.0/24     37100 9318 23561     - Withdrawn - aggregated with 210.119.139.0/24 (37100 9318 23561)
  210.119.139.0/24     37100 9318 23561     - Withdrawn - aggregated with 210.119.138.0/24 (37100 9318 23561)
  220.66.61.0/24       37100 9318 23561       
  220.66.62.0/23       37100 9318 23561     + Announce - aggregate of 220.66.62.0/24 (37100 9318 23561) and 220.66.63.0/24 (37100 9318 23561)
  220.66.62.0/24       37100 9318 23561     - Withdrawn - aggregated with 220.66.63.0/24 (37100 9318 23561)
  220.66.63.0/24       37100 9318 23561     - Withdrawn - aggregated with 220.66.62.0/24 (37100 9318 23561)
  220.66.64.0/22       37100 9318 23561     + Announce - aggregate of 220.66.64.0/23 (37100 9318 23561) and 220.66.66.0/23 (37100 9318 23561)
  220.66.64.0/24       37100 9318 23561     - Withdrawn - aggregated with 220.66.65.0/24 (37100 9318 23561)
  220.66.65.0/24       37100 9318 23561     - Withdrawn - aggregated with 220.66.64.0/24 (37100 9318 23561)
  220.66.66.0/24       37100 9318 23561     - Withdrawn - aggregated with 220.66.67.0/24 (37100 9318 23561)
  220.66.67.0/24       37100 9318 23561     - Withdrawn - aggregated with 220.66.66.0/24 (37100 9318 23561)
  220.66.68.0/23       37100 9318 23561     + Announce - aggregate of 220.66.68.0/24 (37100 9318 23561) and 220.66.69.0/24 (37100 9318 23561)
  220.66.68.0/24       37100 9318 23561     - Withdrawn - aggregated with 220.66.69.0/24 (37100 9318 23561)
  220.66.69.0/24       37100 9318 23561     - Withdrawn - aggregated with 220.66.68.0/24 (37100 9318 23561)
  220.66.70.0/24       37100 9318 23561       

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

AS23561   14 More Specifics   14 Total Advertisements   YONGINUNIVERSITY-AS-KR Yongin University, KR
    210.119.136.0/24              210.119.128.0/18
    210.119.137.0/24              210.119.128.0/18
    210.119.138.0/24              210.119.128.0/18
    210.119.139.0/24              210.119.128.0/18
    220.66.61.0/24                220.66.0.0/15
    220.66.62.0/24                220.66.0.0/15
    220.66.63.0/24                220.66.0.0/15
    220.66.64.0/24                220.66.0.0/15
    220.66.65.0/24                220.66.0.0/15
    220.66.66.0/24                220.66.0.0/15
    220.66.67.0/24                220.66.0.0/15
    220.66.68.0/24                220.66.0.0/15
    220.66.69.0/24                220.66.0.0/15
    220.66.70.0/24                220.66.0.0/15

Whois Entry

whois: 402590

IANA has recorded AS23561 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS23561\n