Report for 38047

Name

TAIWAN-TELECOM - Taiwan Telecom, US

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.

38047 TAIWAN-TELECOM - Taiwan Telecom, US

  Adjacency:     7  Upstream:     6  Downstream:     1
  Upstream Adjacent AS list
    AS17408         ABOVE-AS-AP - AboveNet Communications Taiwan, TW
    AS134823        SDCL-AS-AP - Sky Digital Co., Ltd., TW
    AS20473         AS-VULTR - The Constant Company, LLC, US
    AS3491          PCCWG-APAC-HK - PCCW Global (HK) Ltd., HK
    AS2914          NTT-DATA-2914 - NTT America, Inc., US
    AS53667         PONYNET - FranTech Solutions, US
  Downstream Adjacent AS list
    AS134176        CLOUDIE-AS-AP - Cloudie Limited, HK

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
17104 AS38047        ORG+TRN Originate:       4096 /20.00  Transit:       3840 /20.09 TAIWAN-TELECOM - Taiwan Telecom, US

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       %
10141 AS38047       TAIWAN-TELECOM - Taiwan Telecom, US               16      8      4     12      4  25.00%


  Prefix               AS Path                              Aggregation Suggestion
  103.106.52.0/23      4777 17408 38047     + Announce - aggregate of 103.106.52.0/24 (4777 17408 38047) and 103.106.53.0/24 (4777 17408 38047)
  103.106.52.0/24      4777 17408 38047     - Withdrawn - aggregated with 103.106.53.0/24 (4777 17408 38047)
  103.106.53.0/24      4777 17408 38047     - Withdrawn - aggregated with 103.106.52.0/24 (4777 17408 38047)
  103.106.54.0/23      4608 7575 20473 38047 + Announce - aggregate of 103.106.54.0/24 (4608 7575 20473 38047) and 103.106.55.0/24 (4608 7575 20473 38047)
  103.106.54.0/24      4608 7575 20473 38047 - Withdrawn - aggregated with 103.106.55.0/24 (4608 7575 20473 38047)
  103.106.55.0/24      4608 7575 20473 38047 - Withdrawn - aggregated with 103.106.54.0/24 (4608 7575 20473 38047)
  103.123.100.0/23     4608 7575 20473 38047 + Announce - aggregate of 103.123.100.0/24 (4608 7575 20473 38047) and 103.123.101.0/24 (4608 7575 20473 38047)
  103.123.100.0/24     4608 7575 20473 38047 - Withdrawn - aggregated with 103.123.101.0/24 (4608 7575 20473 38047)
  103.123.101.0/24     4608 7575 20473 38047 - Withdrawn - aggregated with 103.123.100.0/24 (4608 7575 20473 38047)
  103.123.102.0/24     4608 6939 53667 38047   
  103.123.103.0/24     4608 7575 20473 38047   
  103.133.152.0/24     4777 17408 38047       
  103.133.154.0/23     4777 17408 38047     + Announce - aggregate of 103.133.154.0/24 (4777 17408 38047) and 103.133.155.0/24 (4777 17408 38047)
  103.133.154.0/24     4777 17408 38047     - Withdrawn - aggregated with 103.133.155.0/24 (4777 17408 38047)
  103.133.155.0/24     4777 17408 38047     - Withdrawn - aggregated with 103.133.154.0/24 (4777 17408 38047)
  103.182.226.0/24     4777 17408 38047       
  103.182.227.0/24     4608 7575 3491 134823 38047   
  103.183.78.0/24      4777 17408 38047       
  103.183.79.0/24      4777 20473 38047       
  160.187.200.0/24     4777 17408 38047       

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

AS38047   16 More Specifics   16 Total Advertisements   TAIWAN-TELECOM - Taiwan Telecom, US
    103.106.52.0/24               103.106.52.0/22
    103.106.53.0/24               103.106.52.0/22
    103.106.54.0/24               103.106.52.0/22
    103.106.55.0/24               103.106.52.0/22
    103.123.100.0/24              103.123.100.0/22
    103.123.101.0/24              103.123.100.0/22
    103.123.102.0/24              103.123.100.0/22
    103.123.103.0/24              103.123.100.0/22
    103.133.152.0/24              103.133.152.0/22
    103.133.154.0/24              103.133.152.0/22
    103.133.155.0/24              103.133.152.0/22
    103.182.226.0/24              103.182.226.0/23
    103.182.227.0/24              103.182.226.0/23
    103.183.78.0/24               103.183.78.0/23
    103.183.79.0/24               103.183.78.0/23
    160.187.200.0/24              160.187.200.0/23

Whois Entry

whois: 402628

IANA has recorded AS38047 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS38047\n