Autonomous System details

AS10310

Yahoo Holdings Inc. · yahooinc.com

United States

Anycast

CDN

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AS10310 – Yahoo Holdings Inc.

Field	Value
Country	United States
Website	yahooinc.com
Hosted domains	11,673
IPv4 addresses	106,752
IPv6 addresses	480,338,869,130,021,766,098,480,791,552
ASN type	ISP
Registry	arin
Allocated	24 years ago on Nov 14, 2001
Updated	7 years ago on May 01, 2019

Netblock	Company	Num of IPs
69.147.64.0/18	Yahoo Holdings Inc.	16,384
216.252.96.0/19	Yahoo Holdings Inc.	8,192
68.180.128.0/20	Yahoo Holdings Inc.	4,096
184.165.0.0/20	Yahoo Holdings Inc.	4,096
184.165.16.0/20	Yahoo Holdings Inc.	4,096
202.160.176.0/20	Yahoo Inc, Internet Content Provider	4,096
209.131.48.0/20	Yahoo Holdings Inc.	4,096
209.191.64.0/20	Yahoo Holdings Inc.	4,096
209.191.112.0/20	Yahoo Holdings Inc.	4,096
216.115.96.0/20	Yahoo Holdings Inc.	4,096
66.196.64.0/21	Yahoo Holdings Inc.	2,048
124.108.64.0/21	Yahoo-APAC	2,048
180.222.104.0/21	Yahoo Inc.	2,048
180.222.112.0/21	Yahoo Inc.	2,048
180.233.112.0/21	Internet Content Provider	2,048
200.152.160.0/21	Yahoo do Brasil Internet Ltda.	2,048
202.43.216.0/21	Yahoo APAC	2,048
203.104.16.0/21	Yahoo Inc.	2,048
209.191.80.0/21	Yahoo Holdings Inc.	2,048
27.123.44.0/22	Yahoo-Inc	1,024
66.196.88.0/22	Yahoo Holdings Inc.	1,024
72.30.220.0/22	Yahoo Holdings Inc.	1,024
74.6.224.0/22	Yahoo Holdings Inc.	1,024
77.238.168.0/22	Yahoo! Europe	1,024
115.178.12.0/22	Yahoo-APAC	1,024
124.108.80.0/22	Yahoo-APAC	1,024
183.177.76.0/22	Yahoo-APAC	1,024
183.177.84.0/22	Yahoo-APAC	1,024
193.93.196.0/22	Yahoo-UK Limited	1,024
200.152.172.0/22	Yahoo do Brasil Internet Ltda.	1,024
202.43.204.0/22	Yahoo APAC	1,024
203.110.236.0/22	Yahoo APAC Corporate Network	1,024
27.123.34.0/23	Yahoo-APAC	512
27.123.192.0/23	Yahoo-APAC	512
27.123.196.0/23	Yahoo-AUE	512
66.196.70.0/23	Yahoo Holdings Inc.	512
77.238.172.0/23	Yahoo! Europe	512
103.40.110.0/23	Brightroll, Inc	512
115.178.4.0/23	Yahoo-APAC	512
115.178.10.0/23	Yahoo APAC	512
124.108.76.0/23	Internet Content Provider	512
124.108.78.0/23	Yahoo-APAC	512
124.108.84.0/23	Internet Content Provider	512
183.177.74.0/23	Yahoo-TW1	512
183.177.80.0/23	Yahoo-ASIA-BB	512
183.177.90.0/23	Internet Content Provider	512
202.43.202.0/23	Yahoo APAC	512
202.93.6.0/23	YAHOOKOREA	512
202.165.98.0/23	Yahoo APAC	512
202.165.108.0/23	Internet Content Provider	512
203.84.208.0/23	Yahoo APAC	512
203.84.210.0/23	Yahoo APAC	512
203.84.214.0/23	Yahoo APAC	512
209.131.50.0/23	Yahoo Holdings Inc.	512
209.131.52.0/23	Yahoo Holdings Inc.	512
212.82.118.0/23	Yahoo! Europe	512
27.123.33.0/24	Yahoo-APAC	256
27.123.37.0/24	Yahoo APAC	256
67.195.249.0/24	Yahoo Holdings Inc.	256
68.142.248.0/24	Yahoo Holdings Inc.	256
68.142.253.0/24	Yahoo Holdings Inc.	256
77.238.174.0/24	Yahoo! Europe	256
77.238.183.0/24	Yahoo! Europe	256
77.238.189.0/24	Yahoo! Europe	256
87.248.107.0/24	Yahoo! Europe	256
102.165.180.0/24	Verizon Communications South Africa	256
102.165.183.0/24	Verizon Communications South Africa	256
115.178.3.0/24	Yahoo-AUW	256
183.177.68.0/24	Yahoo-AU	256
183.177.69.0/24	Yahoo-AU	256
188.125.88.0/24	Yahoo-UK Limited	256
188.125.89.0/24	Yahoo-UK Limited	256
188.125.90.0/24	Yahoo-UK Limited	256
188.125.91.0/24	Yahoo-UK Limited	256
188.125.93.0/24	Yahoo! Europe	256
188.125.94.0/24	Yahoo! Europe	256
188.125.95.0/24	Yahoo! Europe	256
193.93.197.0/24	Yahoo-UK Limited	256
198.178.157.0/24	Yahoo Holdings Inc.	256
200.152.160.0/24	Yahoo do Brasil Internet Ltda.	256
200.152.161.0/24	Yahoo do Brasil Internet Ltda.	256
200.152.173.0/24	Yahoo do Brasil Internet Ltda.	256
202.43.216.0/24	Yahoo APAC	256
202.47.143.0/24	YAHOOKOREA	256
202.165.96.0/24	Yahoo APAC	256
202.171.234.0/24	Yahoo Inc.	256
203.84.213.0/24	Yahoo APAC	256
212.82.116.0/24	Yahoo! Europe, Geneva, CH	256
216.115.103.0/24	Yahoo Holdings Inc.	256

Netblock	Company
2001:4998::/32	Yahoo Holdings Inc.
2406:2000::/32	Yahoo Global Holdings B.V. Taiwan Branch
2406:6e00::/32	Yahoo-Inc
2804:1bc::/32	Yahoo do Brasil Internet Ltda.
2a00:1288::/32	Yahoo-UK Limited
2a03:cd00::/32	Historic AOL LLC
2001:4998:f000::/36	Yahoo Holdings Inc.
2001:43f8:1140::/48	Verizon Communications South Africa
2001:43f8:1141::/48	Verizon Communications South Africa
2001:4998:f00e::/48	Yahoo Holdings Inc.
2406:2000:f01e::/48	Yahoo Global Holdings B.V. Taiwan Branch
2406:6e00:f048::/48	Yahoo-Inc
2804:1bc:f026::/48	Yahoo do Brasil Internet Ltda.
2804:1bc:f046::/48	Yahoo do Brasil Internet Ltda.
2a00:1288:f032::/48	Yahoo-UK Limited
2a00:1288:f033::/48	Yahoo-UK Limited
2a00:1288:f035::/48	Yahoo-UK Limited
2a00:1288:f036::/48	Yahoo-UK Limited
2a00:1288:f037::/48	Yahoo-UK Limited
2a00:1288:f03c::/48	Yahoo-UK Limited
2a00:1288:f03d::/48	Yahoo-UK Limited
2a00:1288:f03e::/48	Yahoo-UK Limited

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WHOIS Details

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                                                ASHandle:       AS10310
                                                OrgID:          AS10310
                                                ASName:         AS10310
                                                ASNumber:       AS10310
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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IP WHOIS API & Database

Hosted Domains

There are 11,673 domain names hosted across 24 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
69.147.70.30	██████████	4
209.191.75.250	██████████	3
180.222.119.247	██████████	1
188.125.89.204	██████████	1
203.104.22.22	██████████	1

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Hosted Domains API & Database

Peers

There are 422 peers for this ASN.

Peers	Name
AS1003	andrewnet
AS10111	Zeofast Network
AS10229	Yahoo Inc.
AS10230	internet content provider
AS1031	PEER 1031 LLC
AS10880	Yahoo Holdings Inc.
AS1103	SURF B.V.
AS11039	The George Washington University
AS11164	Internet2
AS1140	Stichting Internet Domeinregistratie Nederland
AS11845	Vox Telecom Ltd
AS1221	Telstra Limited
AS12310	iNES GROUP SRL
AS12389	PJSC Rostelecom
AS12552	GlobalConnect AB
AS1257	Tele2 Sverige AB
AS12637	SEEWEB s.r.l.
AS1267	WIND TRE S.P.A.
AS1273	Vodafone Group PLC
AS12735	TurkNet Iletisim Hizmetleri A.S.
AS12779	IT.Gate S.p.A.
AS1280	Internet Systems Consortium, Inc.
AS12859	BIT BV
AS12969	Vodafone Iceland
AS1299	Arelion Sweden AB
AS13004	Serbian Open Exchange DOO
AS13030	Init7 (Switzerland) Ltd.
AS13058	serve-u - Buchholz und Suenderhauf GbR
AS132337	Axclusive
AS13237	euNetworks GmbH
AS132847	Network Solutions Group Pty Ltd
AS133210	EN Technologies Pte Ltd
AS134823	Sky Digital Co., Ltd.
AS1351	University of Vermont
AS135895	Centorrino Technologies Pty Ltd
AS136557	Host Universal Pty Ltd
AS137409	GSL Networks Pty LTD
AS13786	Seabras 1 USA, LLC
AS138997	Eons Data Communications Limited
AS1403	EBOX
AS14041	University Corporation for Atmospheric Research
AS140627	OneQode
AS14196	Yahoo Holdings Inc.
AS142271	EWS DS Networks Inc
AS14537	Continent 8 LLC
AS14630	Invesco Group Services, Inc.
AS14776	Yahoo Holdings Inc.
AS14777	Yahoo Holdings Inc.
AS14778	Yahoo Holdings Inc.
AS14779	Yahoo Holdings Inc.
AS14780	Yahoo Holdings Inc.
AS14840	BR.Digital Telecom
AS148968	Falcore Investments Pty Ltd
AS14907	Wikimedia Foundation Inc.
AS150000	Data-Beam Business Solution
AS151326	DCConnect Communication Pte. Ltd.
AS15280	Host Leasing Corporation
AS15412	FLAG TELECOM UK LIMITED
AS15547	netplus.ch SA
AS15605	Connesi s.p.a.
AS15802	Emirates Integrated Telecommunications Company PJSC
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.
AS15943	wilhelm.tel GmbH
AS15958	CETINdoo-NET
AS16347	ADISTA SAS
AS16515	Yahoo Holdings Inc.
AS16552	Tiggee LLC
AS16735	ALGAR TELECOM S/A
AS17557	Pakistan Telecommunication Company Limited
AS17639	Converge ICT Solutions Inc.
AS1764	Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
AS17660	DrukNet ISP
AS17676	SoftBank Corp.
AS18041	Taiwna Digital Streaming Co.
AS18106	Viewqwest Pte Ltd
AS1828	Unitas Global
AS18293	Internet content provider
AS1836	green.ch AG
AS18403	FPT Telecom Company
AS1853	ACONET
AS18678	INTERNEXA S.A. E.S.P
AS19151	BroadbandONE, LLC
AS1916	Rede Nacional de Ensino e Pesquisa
AS19653	CTS Communications Corp
AS19754	The Fusion Network, LLC
AS198150	SIACOM JSC
AS198385	AlpineDC SA
AS199524	G-Core Labs S.A.
AS199938	Netzwerge GmbH
AS200242	Ember Ana Reimer
AS200454	Tomas Oliveira Valente Leite de Castro
AS20080	Florida International University
AS202032	GOLINE SA
AS202297	Skylon Solutions Limited
AS20253	Qwilt Inc.
AS2027	MilkyWan Association
AS202746	Europeer Ltd.
AS203070	Yahoo-UK Limited
AS203219	Yahoo-UK Limited
AS203220	Yahoo-UK Limited

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ASN API & Database

Upstreams

There are 13 upstreams for this ASN.

upstreams	Name
AS1221	Telstra Limited
AS1299	Arelion Sweden AB
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.
AS3356	Level 3 Parent, LLC
AS3462	Data Communication Business Group
AS3491	PCCW Global, Inc.
AS4637	Telstra Global
AS6461	Zayo Bandwidth
AS6762	TELECOM ITALIA SPARKLE S.p.A.
AS6830	Liberty Global Europe Holding B.V.
AS6939	Hurricane Electric LLC
AS701	Verizon Business
AS7195	EDGEUNO S.A.S

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ASN API & Database

Downstreams

There are 32 downstreams for this ASN.

Downstreams	Name
AS10229	Yahoo Inc.
AS10230	internet content provider
AS10880	Yahoo Holdings Inc.
AS14196	Yahoo Holdings Inc.
AS14776	Yahoo Holdings Inc.
AS14777	Yahoo Holdings Inc.
AS14778	Yahoo Holdings Inc.
AS14779	Yahoo Holdings Inc.
AS14780	Yahoo Holdings Inc.
AS16515	Yahoo Holdings Inc.
AS18293	Internet content provider
AS203070	Yahoo-UK Limited
AS203219	Yahoo-UK Limited
AS203220	Yahoo-UK Limited
AS24506	Yahoo Global Holdings B.V. Taiwan Branch
AS26085	Yahoo Holdings Inc.
AS26101	Yahoo Holdings Inc.
AS28122	YAHOO DO BRASIL INTERNET LTDA.
AS34010	Yahoo-UK Limited
AS36088	Yahoo Holdings Inc.
AS36229	Yahoo Holdings Inc.
AS36646	Yahoo Holdings Inc.
AS36647	Yahoo Holdings Inc.
AS36752	Yahoo Holdings Inc.
AS38032	internet content provider
AS393245	Yahoo Holdings Inc.
AS43428	Yahoo-UK Limited
AS45501	Yahoo Corp Network
AS56173	internet content provider
AS5779	Yahoo Holdings Inc.
AS7233	Yahoo
AS7280	Yahoo Holdings Inc.

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ASN API & Database

Pingable IPs

156 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
2001:4998:efe9:112::a3	AS10310 Yahoo Holdings Inc.	`3.76ms` from Chicago, US
2a00:1288:f032:1fa::3000	AS10310 Yahoo Holdings Inc.	`0.30ms` from Stockholm, SE
2001:4998:f803:402::	AS10310 Yahoo Holdings Inc.	`0.67ms` from Ashburn, US
216.115.110.14	AS10310 Yahoo Holdings Inc.	`0.20ms` from Seattle, US
216.115.100.219	AS10310 Yahoo Holdings Inc.	`0.17ms` from Seattle, US
2406:6e00:2::7961:686f:6f21	AS10310 Yahoo Holdings Inc.	`0.22ms` from Seattle, US
183.177.80.112	AS10310 Yahoo Holdings Inc.	`0.32ms` from Singapore, SG
2406:2000:f02b:10::1	AS10310 Yahoo Holdings Inc.	`0.57ms` from Tokyo, JP
74.6.225.133	AS10310 Yahoo Holdings Inc.	`0.23ms` from Ashburn, US
2001:4998:f002:12::1	AS10310 Yahoo Holdings Inc.	`0.48ms` from Denver, US
66.196.66.40	AS10310 Yahoo Holdings Inc.	`0.28ms` from Frankfurt am Main, DE
202.43.216.1	AS10310 Yahoo Holdings Inc.	`1.57ms` from San Jose, US
2001:4998:ef61:8100::a:1	AS10310 Yahoo Holdings Inc.	`1.07ms` from San Jose, US
183.177.79.30	AS10310 Yahoo Holdings Inc.	`0.52ms` from Tokyo, JP
216.115.97.143	AS10310 Yahoo Holdings Inc.	`0.26ms` from Buffalo, US
2001:4998:f00b:1fa::5301	AS10310 Yahoo Holdings Inc.	`0.38ms` from New York City, US
209.191.80.10	AS10310 Yahoo Holdings Inc.	`0.51ms` from Osasco, BR
216.115.98.187	AS10310 Yahoo Holdings Inc.	`0.95ms` from San Jose, US
216.115.99.205	AS10310 Yahoo Holdings Inc.	`0.16ms` from Seattle, US
2a00:1288:f00e:1fb::b:1000	AS10310 Yahoo Holdings Inc.	`0.26ms` from Amsterdam, NL
216.115.102.242	AS10310 Yahoo Holdings Inc.	`0.22ms` from Ashburn, US
209.131.52.176	AS10310 Yahoo Holdings Inc.	`1.13ms` from Buffalo, US
2406:6e00::7961:686f:6f21	AS10310 Yahoo Holdings Inc.	`0.28ms` from Seattle, US
203.84.209.148	AS10310 Yahoo Holdings Inc.	`0.24ms` from Singapore, SG
2001:4998:ef83:111::a4	AS10310 Yahoo Holdings Inc.	`2.96ms` from Toronto, CA

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
101.39.178.22	AS4847 China Networks Inter-Exchange	`4.04ms` from Beijing, CN
181.58.207.134	AS10620 Telmex Colombia S.A.	`15.85ms` from Bogota, CO
200.191.233.86	AS4230 CLARO S.A.	`0.55ms` from Curitiba, BR
50.209.9.182	AS7922 Comcast Cable Communications, LLC	`6.61ms` from Minneapolis, US
134.195.132.54	AS32313 Big Network, Inc.	`0.56ms` from New York City, US
173.220.54.198	AS6128 Cablevision Systems Corp.	`7.96ms` from New York City, US
221.188.57.214	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.01ms` from Osaka, JP
20.44.48.118	AS8075 Microsoft Corporation	`0.32ms` from Saint Thomas Mount, IN
158.23.128.86	AS8075 Microsoft Corporation	`0.72ms` from Santiago de Querétaro, MX
194.29.155.182	AS12464 Politechnika Warszawska	`1.62ms` from Warsaw, PL
63.144.33.70	AS209 CenturyLink Communications, LLC	`10.93ms` from Ashburn, US
62.103.205.230	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`1.63ms` from Athens, GR
44.224.166.246	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
181.47.93.214	AS27747 Telecentro S.A.	`4.72ms` from Buenos Aires, AR
222.162.84.22	AS4837 CHINA UNICOM China169 Backbone	`10.92ms` from Changchun, CN
45.181.53.6	AS269172 JCM NET TELECOM LTDA	`14.86ms` from Fortaleza, BR
80.245.65.70	AS198570 Stadtnetz Bamberg Gesellschaft fuer Telekommunikation mbH	`4.53ms` from Frankfurt am Main, DE
77.24.85.54	AS3209 Vodafone GmbH	`1.79ms` from Hamburg, DE
154.218.164.214	AS137951 ASLINE LIMITED	`0.67ms` from Hong Kong, HK
217.37.154.182	AS2856 British Telecommunications PLC	`6.69ms` from London, GB
23.226.90.166	AS31775 Greenlight Networks, LLC	`7.37ms` from New York City, US
100.41.202.22	AS701 Verizon Business	`0.74ms` from Philadelphia, US
54.86.213.22	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
200.24.94.182	AS270964 (Plugar Internet) C&R C. C. E INTERNET LTDA	`8.25ms` from Rio de Janeiro, BR
129.116.184.166	AS18 University of Texas at Austin	`6.25ms` from San Antonio, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

traceroute -a -n -q1 -m6 209.131.50.14

traceroute to 209.131.50.14 (209.131.50.14): 6 hops max, 52 byte packets

1 [AS56630] 77.72.16.177 1.676 ms

2 [] 193.239.116.216 6.652 ms

3 [AS10310] 209.191.112.17 14.177 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On November 28th 2025

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS10310 at robtex.

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