Report for 151823

Name

CT-Centralsouth-China-IIP - China Telecom, CN

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.

151823 CT-Centralsouth-China-IIP - China Telecom, CN

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS4134          CHINANET-BACKBONE - No.31,Jin-rong Street, CN

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
4924  AS151823       ORIGIN  Originate:      37632 /16.80  Transit:          0 /0.00  CT-Centralsouth-China-IIP - China Telecom, CN

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       %
 3849 AS151823      CT-Centralsouth-China-IIP - China Telecom, CN     15     15      1      1     14  93.33%


  Prefix               AS Path                              Aggregation Suggestion
  175.12.0.0/17        4777 2516 4134 151823 + Announce - aggregate of 175.12.0.0/18 (4777 2516 4134 151823) and 175.12.64.0/18 (4777 2516 4134 151823)
  175.12.0.0/18        4777 2516 4134 151823 - Withdrawn - aggregated with 175.12.64.0/18 (4777 2516 4134 151823)
  175.12.58.0/24       4777 2516 4134 151823 - Withdrawn - matching aggregate 175.12.0.0/18 4777 2516 4134 151823
  175.12.59.0/24       4777 2516 4134 151823 - Withdrawn - matching aggregate 175.12.0.0/18 4777 2516 4134 151823
  175.12.60.0/24       4777 2516 4134 151823 - Withdrawn - matching aggregate 175.12.0.0/18 4777 2516 4134 151823
  175.12.61.0/24       4777 2516 4134 151823 - Withdrawn - matching aggregate 175.12.0.0/18 4777 2516 4134 151823
  175.12.62.0/24       4777 2516 4134 151823 - Withdrawn - matching aggregate 175.12.0.0/18 4777 2516 4134 151823
  175.12.63.0/24       4777 2516 4134 151823 - Withdrawn - matching aggregate 175.12.0.0/18 4777 2516 4134 151823
  175.12.64.0/18       4777 2516 4134 151823 - Withdrawn - aggregated with 175.12.0.0/18 (4777 2516 4134 151823)
  175.12.64.0/22       4777 2516 4134 151823 - Withdrawn - matching aggregate 175.12.64.0/18 4777 2516 4134 151823
  175.12.96.0/22       4777 2516 4134 151823 - Withdrawn - matching aggregate 175.12.64.0/18 4777 2516 4134 151823
  175.12.105.0/24      4777 2516 4134 151823 - Withdrawn - matching aggregate 175.12.64.0/18 4777 2516 4134 151823
  175.12.106.0/24      4777 2516 4134 151823 - Withdrawn - matching aggregate 175.12.64.0/18 4777 2516 4134 151823
  175.12.107.0/24      4777 2516 4134 151823 - Withdrawn - matching aggregate 175.12.64.0/18 4777 2516 4134 151823
  175.12.108.0/24      4777 2516 4134 151823 - Withdrawn - matching aggregate 175.12.64.0/18 4777 2516 4134 151823
  175.12.109.0/24      4777 2516 4134 151823 - Withdrawn - matching aggregate 175.12.64.0/18 4777 2516 4134 151823

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

AS151823   15 More Specifics   15 Total Advertisements   CT-Centralsouth-China-IIP - China Telecom, CN
    175.12.0.0/18                 175.0.0.0/12
    175.12.58.0/24                175.0.0.0/12
    175.12.59.0/24                175.0.0.0/12
    175.12.60.0/24                175.0.0.0/12
    175.12.61.0/24                175.0.0.0/12
    175.12.62.0/24                175.0.0.0/12
    175.12.63.0/24                175.0.0.0/12
    175.12.64.0/18                175.0.0.0/12
    175.12.64.0/22                175.0.0.0/12
    175.12.96.0/22                175.0.0.0/12
    175.12.105.0/24               175.0.0.0/12
    175.12.106.0/24               175.0.0.0/12
    175.12.107.0/24               175.0.0.0/12
    175.12.108.0/24               175.0.0.0/12
    175.12.109.0/24               175.0.0.0/12

Whois Entry

whois: 402628

IANA has recorded AS151823 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS151823\n