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	Prefix	Description
	77.238.175.0/24	Yahoo! Europe
	184.165.10.0/24	Yahoo Holdings Inc.
	2001:4998:ef6f::/48	Yahoo Holdings Inc.
	2001:4998:ef84::/48	Yahoo Holdings Inc.
	2406:6e00:ef98::/48	Yahoo-Inc
	2a00:1288:ef83::/48	Yahoo-UK Limited
	2a00:1288:ef9b::/48	Yahoo-UK Limited
	2a00:1288:efc1::/48	Yahoo-UK Limited

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS10310	Yahoo Holdings Inc.	✔	✔
	AS12400	Partner Communications Ltd.	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS10310	Yahoo Holdings Inc.	✔	✔
	AS12400	Partner Communications Ltd.	✔	✔

ASHandle:       AS14776
OrgID:          OH-207
ASName:         YAHOO
ASNumber:       14776 - 14781
RegDate:        2000-02-07
Updated:        2020-07-21
Source:         ARIN



OrgID:          OH-207
OrgName:        Yahoo Holdings Inc.
CanAllocate:    
Street:         770 BROADWAY FL 9
City:           New York
State/Prov:     NY
Country:        US
PostalCode:     10003-9558
RegDate:        2018-12-21
Updated:        2025-09-03
OrgAdminHandle: ODA14-ARIN
OrgTechHandle:  OTC2-ARIN
OrgAbuseHandle: OATHA-ARIN
OrgNOCHandle:   OATHN-ARIN
Source:         ARIN





OrgAdminHandle:       ODA14-ARIN
OrgAdminName:          Oath Domain Admin
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        OTC2-ARIN
OrgTechName:           Oath Tech Contact
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       OATHA-ARIN
OrgAbuseName:          Oath Abuse
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         OATHN-ARIN
OrgNOCName:            Oath NOC
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-03-13T03:27:40Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-yahoo	74
RIPE	as-catchcom	151
RIPE	as2116:as-gcnet	151
LEVEL3	as-level3-origins-na	0
RIPE	as-hotnet-il	117
RADB	as-hurricanev6	20659
RIPE	as-golden	4197
APNIC	as1221:as-customers	4734
LEVEL3	as-yahoo	74