AS401518 OpenAI OpCo, LLC

OAI-01 - OpenAI OpCo, LLC · registered in the United States

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in United States#12,671largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#58,684of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS401518 in ASN lookup Look up an IP in this network (199.47.142.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

199.47.142.0/23

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ASNNameIPv4 addresses

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AS401552#12672 EUC - Example User Content, LLC512

AS401577#12673 STRATA-ASN-01 - StrataCare Solutions LLC512

AS401596#12674 TAC-205-23 - Texas Association of Counties512

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