Report for 10880

Name

YAHOO-AN2 - 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 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.

10880 YAHOO-AN2 - Yahoo Holdings Inc., US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS10310         YAHOO-1 - Yahoo Holdings Inc., US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
29941 AS10880        ORIGIN  Originate:       1536 /21.42  Transit:          0 /0.00  YAHOO-AN2 - Yahoo Holdings Inc., 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       %
20355 AS10880       YAHOO-AN2 - Yahoo Holdings Inc., US                6      2      1      5      1  16.67%


  Prefix               AS Path                              Aggregation Suggestion
  68.180.130.0/23      4777 2497 10310 10880 + Announce - aggregate of 68.180.130.0/24 (4777 2497 10310 10880) and 68.180.131.0/24 (4777 2497 10310 10880)
  68.180.130.0/24      4777 2497 10310 10880 - Withdrawn - aggregated with 68.180.131.0/24 (4777 2497 10310 10880)
  68.180.131.0/24      4777 2497 10310 10880 - Withdrawn - aggregated with 68.180.130.0/24 (4777 2497 10310 10880)
  202.165.97.0/24      4777 2516 10310 10880   
  203.84.218.0/24      4608 10310 10880       
  203.84.220.0/24      4777 2516 10310 10880   
  209.191.95.0/24      4777 2497 3356 10310 10310 10310 10310 10880   

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

AS10880   6 More Specifics   6 Total Advertisements   YAHOO-AN2 - Yahoo Holdings Inc., US
    68.180.130.0/24               68.180.128.0/17
    68.180.131.0/24               68.180.128.0/17
    202.165.97.0/24               202.165.96.0/20
    203.84.218.0/24               203.84.192.0/19
    203.84.220.0/24               203.84.192.0/19
    209.191.95.0/24               209.191.64.0/18

Whois Entry

whois: 402332

IANA has recorded AS10880 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS10880\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:       10880
             ASName:         YAHOO-AN2
             ASHandle:       AS10880
             RegDate:        2006-05-05
             Updated:        2019-05-01
             Ref:            https://rdap.arin.net/registry/autnum/10880
             
             
             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
             
             
             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
             
             OrgTechHandle: OTC2-ARIN
             OrgTechName:   Oath Tech Contact
             OrgTechPhone:  +1-408-349-5555 
             OrgTechEmail:  rir-tech@yahooinc.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/OTC2-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.
             #