Report for 6431

Name

ATT-RESEARCH - AT&T Enterprises, LLC, 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.

6431 ATT-RESEARCH - AT&T Enterprises, LLC, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
783   AS6431         ORIGIN  Originate:     396800 /13.40  Transit:          0 /0.00  ATT-RESEARCH - AT&T Enterprises, LLC, 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       %
 5551 AS6431        ATT-RESEARCH - AT&T Enterprises, LLC, US          15      9      1      7      8  53.33%


  Prefix               AS Path                              Aggregation Suggestion
  12.106.32.0/22       4777 2497 7018 6431  + Announce - aggregate of 12.106.32.0/23 (4777 2497 7018 6431) and 12.106.34.0/23 (4777 2497 7018 6431)
  12.106.32.0/23       4777 2497 7018 6431  - Withdrawn - aggregated with 12.106.34.0/23 (4777 2497 7018 6431)
  12.106.34.0/24       4777 2497 7018 6431  - Withdrawn - aggregated with 12.106.35.0/24 (4777 2497 7018 6431)
  12.106.35.0/24       4777 2497 7018 6431  - Withdrawn - aggregated with 12.106.34.0/24 (4777 2497 7018 6431)
  135.197.0.0/16       4777 2497 7018 6431    
  135.197.0.0/17       4777 2497 7018 6431  - Withdrawn - matching aggregate 135.197.0.0/16 4777 2497 7018 6431
  135.197.128.0/17     4777 2497 7018 6431  - Withdrawn - matching aggregate 135.197.0.0/16 4777 2497 7018 6431
  135.205.0.0/16       4777 2497 7018 6431    
  135.205.0.0/17       4777 2497 7018 6431  - Withdrawn - matching aggregate 135.205.0.0/16 4777 2497 7018 6431
  135.205.128.0/17     4777 2497 7018 6431  - Withdrawn - matching aggregate 135.205.0.0/16 4777 2497 7018 6431
  135.207.0.0/16       4777 2497 7018 6431    
  135.207.0.0/17       4777 2497 7018 6431  - Withdrawn - matching aggregate 135.207.0.0/16 4777 2497 7018 6431
  135.207.128.0/17     4777 2497 7018 6431  - Withdrawn - matching aggregate 135.207.0.0/16 4777 2497 7018 6431
  192.20.225.0/24      4777 2497 7018 6431    
  204.178.8.0/21       4777 2497 7018 6431    
  207.76.218.0/24      4777 2497 7018 6431    

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

AS6431   13 More Specifics   15 Total Advertisements   ATT-RESEARCH - AT&T Enterprises, LLC, US
    12.106.32.0/23                12.0.0.0/8
    12.106.34.0/24                12.0.0.0/8
    12.106.35.0/24                12.0.0.0/8
    135.197.0.0/17                135.197.0.0/16
    135.197.128.0/17              135.197.0.0/16
    135.205.0.0/16                135.200.0.0/13
    135.205.0.0/17                135.200.0.0/13
    135.205.128.0/17              135.200.0.0/13
    135.207.0.0/16                135.200.0.0/13
    135.207.0.0/17                135.200.0.0/13
    135.207.128.0/17              135.200.0.0/13
    204.178.8.0/21                204.176.0.0/14
    207.76.218.0/24               207.76.0.0/14

Whois Entry

whois: 402332

IANA has recorded AS6431 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.net -r "AS6431\n             % [whois.apnic.net]
             % Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html
             
             %ERROR:101: no entries found
             %
             % No entries found in source APNIC,JPNIC,KRNIC,TWNIC,IDNIC,IRINN-GRS.
             
             % This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU5)