Report for 17110

Name

YAHOO-US2 - Yahoo Holdings Inc., 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.

17110 YAHOO-US2 - Yahoo

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS10310   YAHOO-1 - Yahoo!

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
6005  AS17110  ORIGIN  Originate:      11264 /18.54  Transit:          0 /0.00  YAHOO-US2 - 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       %
11812 AS17110 YAHOO-US2 - Yahoo                             6      0      0      6      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  64.209.232.0/24      4637 10310 17110       
  67.28.114.0/23       4637 10310 17110       
  209.73.176.0/21      4637 10310 17110       
  209.225.40.0/24      4637 10310 17110       
  216.109.112.0/20     4637 10310 17110       
  216.155.192.0/20     4637 10310 17110       

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

AS17110   3 More Specifics   5 Total Advertisements   YAHOO-US2 - Yahoo
    67.28.114.0/23                67.24.0.0/13
    209.73.176.0/21               209.73.160.0/19
    209.225.40.0/24               209.225.0.0/18
    64.209.232.0/24               64.209.224.0/19

Prefixes added and withdrawn by this origin AS in the past 7 days.

    - 64.209.232.0/24             Withdrawn

Whois Entry

whois: 402603

IANA has recorded AS17110 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS17110\n             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #
             
             
             ASNumber:       17110
             ASName:         YAHOO-US2
             ASHandle:       AS17110
             RegDate:        2000-07-26
             Updated:        2019-05-01
             Ref:            https://rdap.arin.net/registry/autnum/17110
             
             
             OrgName:        Yahoo Holdings Inc.
             OrgId:          OH-207
             Address:        770 BROADWAY FL 9
             City:           New York
             StateProv:      NY
             PostalCode:     10003-9558
             Country:        US
             RegDate:        2018-12-21
             Updated:        2025-09-03
             Ref:            https://rdap.arin.net/registry/entity/OH-207
             
             
             OrgTechHandle: OTC2-ARIN
             OrgTechName:   Oath Tech Contact
             OrgTechPhone:  +1-408-349-5555 
             OrgTechEmail:  rir-tech@oath.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/OTC2-ARIN
             
             OrgNOCHandle: OATHN-ARIN
             OrgNOCName:   Oath NOC
             OrgNOCPhone:  +1-408-349-5555 
             OrgNOCEmail:  rir-noc@yahoo-inc.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/OATHN-ARIN
             
             OrgAbuseHandle: OATHA-ARIN
             OrgAbuseName:   Oath Abuse
             OrgAbusePhone:  +1-408-349-3300 
             OrgAbuseEmail:  rir-abuse@yahooinc.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/OATHA-ARIN
             
             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #