Report for 7233

Name

YAHOO-US - Yahoo, 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 AS4637) 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.

7233 YAHOO-US - Yahoo

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS10310   YAHOO-1 - Yahoo!
    AS6395    BROADWING - Broadwing Communications Services, Inc.

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
5339  AS7233   ORIGIN  Originate:      15104 /18.12  Transit:          0 /0.00  YAHOO-US - Yahoo

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       %
 7693 AS7233  YAHOO-US - Yahoo                              7      0      0      7      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  66.228.160.0/20      4637 10310 7233        
  66.228.176.0/21      4637 3356 6395 7233    
  207.126.224.0/20     4637 10310 7233        
  209.131.48.0/24      4637 10310 7233        
  209.131.61.0/24      4637 3356 6395 7233    
  209.131.62.0/24      4637 10310 7233        
  216.145.48.0/20      4637 10310 7233        

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

AS7233   5 More Specifics   7 Total Advertisements   YAHOO-US - Yahoo
    66.228.160.0/20               66.228.160.0/19
    66.228.176.0/21               66.228.160.0/19
    209.131.48.0/24               209.131.32.0/19
    209.131.61.0/24               209.131.32.0/19
    209.131.62.0/24               209.131.32.0/19

Whois Entry

whois: 402332

IANA has recorded AS7233 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.net -r "AS7233\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-AU4)