AS4866 Yahoo Holdings Inc.

POLYVORE - Yahoo Holdings Inc. · registered in the United States

IPv4 addresses7682 prefixes · <0.001% of announced IPv4

Rank in United States#9,279largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#43,659of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS4866 in ASN lookup Look up an IP in this network (192.152.66.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

192.152.66.0/24
204.29.186.0/23

Other ASNs named Yahoo Holdings Inc.

18 other networks use the same organisation name; together with AS4866 they announce 493,568 IPv4 addresses.

ASNNameIPv4 addresses

AS36647YAHOO-GQ1 - Yahoo Holdings Inc. US184,320

AS26101YAHOO-BF1 - Yahoo Holdings Inc. US121,344

AS36646YAHOO-NE1 - Yahoo Holdings Inc. US94,720

AS10310YAHOO-1 - Yahoo Holdings Inc. US78,080

AS7280YAHOO-FC - Yahoo Holdings Inc. US2,304

AS14778YAHOO - Yahoo Holdings Inc. US1,536

AS10880YAHOO-AN2 - Yahoo Holdings Inc. US1,536

AS14777YAHOO - Yahoo Holdings Inc. US1,280

AS36088YAHOO-BCST-AC2 - Yahoo Holdings Inc. US1,280

AS5779YAHOO-DNB - Yahoo Holdings Inc. US768

AS14196YAHOO-CHA - Yahoo Holdings Inc. US768

AS14776YAHOO - Yahoo Holdings Inc. US768

AS14779YAHOO - Yahoo Holdings Inc. US768

AS14780YAHOO - Yahoo Holdings Inc. US768

AS36229YAHOO-YSM-SC8 - Yahoo Holdings Inc. US768

AS36752YAHOO-SP1 - Yahoo Holdings Inc. US768

AS393245YAHOO-SWB - Yahoo Holdings Inc. US768

AS16515ALTAVISTA - Yahoo Holdings Inc. US256

Similar-sized networks in United States

ASNNameIPv4 addresses

AS4188#9276 GILBARCO-AS - Gilbarco, Inc.768

AS4374#9277 CKE-RESTAURANTS - CKE Restaurants Holdings, Inc.768

AS4565#9278 MEGAPATH2-US - GTT Americas, LLC768

AS4867#9280 CBOE - Cboe768

AS4892#9281 APPLIEDUK-CLOUD-04 - APPLIED SYSTEMS, INC768

AS5052#9282 DNIC-AS-05052 - United States Department of Defense (DoD)768

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources