Report for 38387

Name

CMBSEJONG-AS-KR-KR - CMB Sejong Broadcasting Co,.Ltd, 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.

38387 CMBSEJONG-AS-KR-KR - CMB Sejong Broadcasting Co,.Ltd, KR

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS9457          DREAMX-AS-KR - DREAMLINE CO., KR
    AS9318          SKB-AS-KR - SK Broadband Co Ltd, KR

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
14352 AS38387        ORIGIN  Originate:       5632 /19.54  Transit:          0 /0.00  CMBSEJONG-AS-KR-KR - CMB Sejong Broadcasting Co,.Ltd, 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       %
 8710 AS38387       CMBSEJONG-AS-KR-KR - CMB Sejong Broadcasting      16      8      3     11      5  31.25%


  Prefix               AS Path                              Aggregation Suggestion
  27.126.4.0/22        4777 4713 2914 9457 38387 + Announce - aggregate of 27.126.4.0/23 (4777 4713 2914 9457 38387) and 27.126.6.0/23 (4777 4713 2914 9457 38387)
  27.126.4.0/24        4777 4713 2914 9457 38387 - Withdrawn - aggregated with 27.126.5.0/24 (4777 4713 2914 9457 38387)
  27.126.5.0/24        4777 4713 2914 9457 38387 - Withdrawn - aggregated with 27.126.4.0/24 (4777 4713 2914 9457 38387)
  27.126.6.0/24        4777 4713 2914 9457 38387 - Withdrawn - aggregated with 27.126.7.0/24 (4777 4713 2914 9457 38387)
  27.126.7.0/24        4777 4713 2914 9457 38387 - Withdrawn - aggregated with 27.126.6.0/24 (4777 4713 2914 9457 38387)
  27.126.9.0/24        4777 4713 2914 9457 38387   
  27.126.10.0/23       4777 4713 2914 9457 38387 + Announce - aggregate of 27.126.10.0/24 (4777 4713 2914 9457 38387) and 27.126.11.0/24 (4777 4713 2914 9457 38387)
  27.126.10.0/24       4777 4713 2914 9457 38387 - Withdrawn - aggregated with 27.126.11.0/24 (4777 4713 2914 9457 38387)
  27.126.11.0/24       4777 4713 2914 9457 38387 - Withdrawn - aggregated with 27.126.10.0/24 (4777 4713 2914 9457 38387)
  27.126.18.0/23       4777 4713 2914 9457 38387 + Announce - aggregate of 27.126.18.0/24 (4777 4713 2914 9457 38387) and 27.126.19.0/24 (4777 4713 2914 9457 38387)
  27.126.18.0/24       4777 4713 2914 9457 38387 - Withdrawn - aggregated with 27.126.19.0/24 (4777 4713 2914 9457 38387)
  27.126.19.0/24       4777 4713 2914 9457 38387 - Withdrawn - aggregated with 27.126.18.0/24 (4777 4713 2914 9457 38387)
  27.126.20.0/24       4777 4713 2914 9457 38387   
  27.126.21.0/24       4777 6939 9318 38387   
  27.126.22.0/24       4777 6939 9318 38387   
  27.126.23.0/24       4777 2516 9318 38387   
  27.126.47.0/24       4777 2516 9318 38387   
  103.237.20.0/22      4777 2516 9318 38387   
  163.53.156.0/22      4777 2516 9318 38387   

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

AS38387   14 More Specifics   16 Total Advertisements   CMBSEJONG-AS-KR-KR - CMB Sejong Broadcasting Co,.Ltd, KR
    27.126.4.0/24                 27.126.0.0/18
    27.126.5.0/24                 27.126.0.0/18
    27.126.6.0/24                 27.126.0.0/18
    27.126.7.0/24                 27.126.0.0/18
    27.126.9.0/24                 27.126.0.0/18
    27.126.10.0/24                27.126.0.0/18
    27.126.11.0/24                27.126.0.0/18
    27.126.18.0/24                27.126.0.0/18
    27.126.19.0/24                27.126.0.0/18
    27.126.20.0/24                27.126.0.0/18
    27.126.21.0/24                27.126.0.0/18
    27.126.22.0/24                27.126.0.0/18
    27.126.23.0/24                27.126.0.0/18
    27.126.47.0/24                27.126.0.0/18

Whois Entry

whois: 402628

IANA has recorded AS38387 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS38387\n