Report for 23975

Name

YC-AS-KR-KR - Yonam Institute of Technology, 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 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.

23975 YC-AS-KR-KR - Yonam Institute of Technology, KR

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS3786          LGDACOM-KR - LG DACOM Corporation, KR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
16843 AS23975        ORIGIN  Originate:       4096 /20.00  Transit:          0 /0.00  YC-AS-KR-KR - Yonam Institute of Technology, 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       %
21336 AS23975       YC-AS-KR-KR - Yonam Institute of Technology,       6      2      1      5      1  16.67%


  Prefix               AS Path                              Aggregation Suggestion
  203.255.224.0/21     4608 7575 3786 23975   
  220.66.19.0/24       4777 2516 3786 23975   
  220.66.20.0/23       4777 2516 3786 23975 + Announce - aggregate of 220.66.20.0/24 (4777 2516 3786 23975) and 220.66.21.0/24 (4777 2516 3786 23975)
  220.66.20.0/24       4777 2516 3786 23975 - Withdrawn - aggregated with 220.66.21.0/24 (4777 2516 3786 23975)
  220.66.21.0/24       4777 2516 3786 23975 - Withdrawn - aggregated with 220.66.20.0/24 (4777 2516 3786 23975)
  220.66.111.0/24      4608 7575 3786 23975   
  220.66.112.0/22      4608 7575 3786 23975   

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

AS23975   5 More Specifics   6 Total Advertisements   YC-AS-KR-KR - Yonam Institute of Technology, KR
    220.66.19.0/24                220.66.0.0/15
    220.66.20.0/24                220.66.0.0/15
    220.66.21.0/24                220.66.0.0/15
    220.66.111.0/24               220.66.0.0/15
    220.66.112.0/22               220.66.0.0/15

Whois Entry

whois: 402591

IANA has recorded AS23975 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS23975\n