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AS401518 OpenAI OpCo, LLC | IPGeolocation.io

Q: Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

ASN Lookup Tool

OpenAI OpCo, LLC openai.com

US 1 Routes

AS Data

AS401518

AS401518 – OpenAI OpCo, LLC

AS Number	401518
AS Name	OPENAI
Organization	OpenAI OpCo, LLC (ool-15)
Country	US
Website	openai.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2024-11-26

ASN Intelligence API for production workflows

Use ASN data for AS401518 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
199.47.142.0/23	AS401518	OpenAI OpCo, LLC	OpenAI OpCo, LLC	512

Raw Whois Response

#
# 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:       401518
ASName:         OPENAI
ASHandle:       AS401518
RegDate:        2024-11-26
Updated:        2026-10-28
Ref:            https://rdap.arin.net/registry/autnum/401518


OrgName:        OpenAI OpCo, LLC
OrgId:          OOL-15
Address:        1455 3rd St
City:           San Francisco
StateProv:      CA
PostalCode:     94158
Country:        US
RegDate:        2024-04-25
Updated:        2026-11-03
Ref:            https://rdap.arin.net/registry/entity/OOL-15


OrgAbuseHandle: ONA10-ARIN
OrgAbuseName:   OpenAI Network Abuse
OrgAbusePhone:  +1-628-895-9918 
OrgAbuseEmail:  network-abuse-inbox@openai.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ONA10-ARIN

OrgTechHandle: NETWO10231-ARIN
OrgTechName:   Network Engineering
OrgTechPhone:  +1-628-895-9918 
OrgTechEmail:  arin-contact-inbox@openai.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO10231-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.
#

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "401518",
    "as_handle" : "AS401518",
    "as_name" : "OPENAI",
    "tech_contacts" : [ "NETWO10231-ARIN" ],
    "abuse_contacts" : [ "ONA10-ARIN" ],
    "date_created" : "2024-11-26",
    "date_updated" : "2026-10-28",
    "source" : "https://rdap.arin.net/registry/autnum/401518"
  } ],
  "organization" : {
    "handle" : "OOL-15",
    "name" : "OpenAI OpCo, LLC",
    "address" : [ "1455 3rd St", "San Francisco", "CA", "94158", "US" ],
    "street" : "3rd St",
    "city" : "San Francisco",
    "state" : "CA",
    "zip_code" : "94158",
    "country" : [ "US" ],
    "date_created" : "2024-04-25",
    "date_updated" : "2026-11-03",
    "source" : "https://rdap.arin.net/registry/entity/OOL-15",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "NETWO10231-ARIN",
    "name" : "Network Engineering",
    "email" : [ "arin-contact-inbox@openai.com" ],
    "phone" : [ "+1-628-895-9918" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO10231-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "ONA10-ARIN",
    "name" : "OpenAI Network Abuse",
    "email" : [ "network-abuse-inbox@openai.com" ],
    "phone" : [ "+1-628-895-9918" ],
    "source" : "https://rdap.arin.net/registry/entity/ONA10-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS3356	Level 3 Parent, LLC	US

Upstreams

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US

Contacts

Email Contacts

arin-contact-inbox@openai.com

Abuse Contacts

network-abuse-inbox@openai.com

Frequently Asked Questions

What is ASN AS401518?

ASN AS401518 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS401518?

AS401518 is listed under OpenAI OpCo, LLC.

What do peers, upstreams, and downstreams mean?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data included here?

WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.