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AS401864 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.

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OpenAI OpCo, LLC openai.com

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AS Data

AS401864

AS401864 – OpenAI OpCo, LLC

AS Number	401864
AS Name	OPENAI
Organization	OpenAI OpCo, LLC (ool-15)
Country	US
Website	openai.com
Number of IPv4 Routes	0
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2025-07-24

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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:       401864
ASName:         OPENAI
ASHandle:       AS401864
RegDate:        2025-07-24
Updated:        2025-07-24
Ref:            https://rdap.arin.net/registry/autnum/401864


OrgName:        OpenAI OpCo, LLC
OrgId:          OOL-15
Address:        3180 18th Street
City:           San Francisco
StateProv:      CA
PostalCode:     94110
Country:        US
RegDate:        2024-04-25
Updated:        2026-05-29
Ref:            https://rdap.arin.net/registry/entity/OOL-15


OrgTechHandle: ZUBER20-ARIN
OrgTechName:   Zuberi, Ammar 
OrgTechPhone:  +1-415-591-9686 
OrgTechEmail:  az@openai.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ZUBER20-ARIN

OrgTechHandle: BUCKL183-ARIN
OrgTechName:   Buckley, Christopher 
OrgTechPhone:  +1-415-602-4217 
OrgTechEmail:  christopher@openai.com
OrgTechRef:    https://rdap.arin.net/registry/entity/BUCKL183-ARIN

OrgTechHandle: FISHB26-ARIN
OrgTechName:   Fishbein, John 
OrgTechPhone:  +1-609-410-4923 
OrgTechEmail:  fish@openai.com
OrgTechRef:    https://rdap.arin.net/registry/entity/FISHB26-ARIN

OrgTechHandle: DUMEL2-ARIN
OrgTechName:   Du, Melissa 
OrgTechPhone:  +1-415-519-3295 
OrgTechEmail:  melissa@openai.com
OrgTechRef:    https://rdap.arin.net/registry/entity/DUMEL2-ARIN

OrgAbuseHandle: NETWO10231-ARIN
OrgAbuseName:   Network Engineering
OrgAbusePhone:  +1-628-895-9918 
OrgAbuseEmail:  network-engineering@openai.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO10231-ARIN

OrgTechHandle: ZUOCH2-ARIN
OrgTechName:   Zuo, Charles 
OrgTechPhone:  +1-858-722-4655 
OrgTechEmail:  czuo@openai.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ZUOCH2-ARIN

OrgTechHandle: NETWO10231-ARIN
OrgTechName:   Network Engineering
OrgTechPhone:  +1-628-895-9918 
OrgTechEmail:  network-engineering@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" : "401864",
    "as_handle" : "AS401864",
    "as_name" : "OPENAI",
    "tech_contacts" : [ "ZUBER20-ARIN", "BUCKL183-ARIN", "FISHB26-ARIN", "DUMEL2-ARIN", "ZUOCH2-ARIN", "NETWO10231-ARIN" ],
    "abuse_contacts" : [ "NETWO10231-ARIN" ],
    "date_created" : "2025-07-24",
    "date_updated" : "2025-07-24",
    "source" : "https://rdap.arin.net/registry/autnum/401864"
  } ],
  "organization" : {
    "handle" : "OOL-15",
    "name" : "OpenAI OpCo, LLC",
    "address" : [ "3180 18th Street", "San Francisco", "CA", "94110", "US" ],
    "street" : "18th Street",
    "city" : "San Francisco",
    "state" : "CA",
    "zip_code" : "94110",
    "country" : [ "US" ],
    "date_created" : "2024-04-25",
    "date_updated" : "2026-05-29",
    "source" : "https://rdap.arin.net/registry/entity/OOL-15",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "ZUBER20-ARIN",
    "name" : "Zuberi, Ammar",
    "email" : [ "az@openai.com" ],
    "phone" : [ "+1-415-591-9686" ],
    "source" : "https://rdap.arin.net/registry/entity/ZUBER20-ARIN"
  }, {
    "handle" : "BUCKL183-ARIN",
    "name" : "Buckley, Christopher",
    "email" : [ "christopher@openai.com" ],
    "phone" : [ "+1-415-602-4217" ],
    "source" : "https://rdap.arin.net/registry/entity/BUCKL183-ARIN"
  }, {
    "handle" : "FISHB26-ARIN",
    "name" : "Fishbein, John",
    "email" : [ "fish@openai.com" ],
    "phone" : [ "+1-609-410-4923" ],
    "source" : "https://rdap.arin.net/registry/entity/FISHB26-ARIN"
  }, {
    "handle" : "DUMEL2-ARIN",
    "name" : "Du, Melissa",
    "email" : [ "melissa@openai.com" ],
    "phone" : [ "+1-415-519-3295" ],
    "source" : "https://rdap.arin.net/registry/entity/DUMEL2-ARIN"
  }, {
    "handle" : "ZUOCH2-ARIN",
    "name" : "Zuo, Charles",
    "email" : [ "czuo@openai.com" ],
    "phone" : [ "+1-858-722-4655" ],
    "source" : "https://rdap.arin.net/registry/entity/ZUOCH2-ARIN"
  }, {
    "handle" : "NETWO10231-ARIN",
    "name" : "Network Engineering",
    "email" : [ "network-engineering@openai.com" ],
    "phone" : [ "+1-628-895-9918" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO10231-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "NETWO10231-ARIN",
    "name" : "Network Engineering",
    "email" : [ "network-engineering@openai.com" ],
    "phone" : [ "+1-628-895-9918" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO10231-ARIN"
  } ]
}

Frequently Asked Questions

What is ASN AS401864?

ASN AS401864 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS401864?

AS401864 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.