ASN Lookup Tool

Anthropic, PBC anthropic.com US US 0 Routes

AS Data

AS4167

AS4167 – Anthropic, PBC

AS Number 4167
AS Name AP-2440-4167
Organization Anthropic, PBC(ap-2440)
Country US
Website anthropic.com
Number of IPv4 Routes 0
Number of IPv6 Routes 0
ASN type BUSINESS
Registry ARIN
Date Allocated 2026-03-03

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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:       4167
ASName:         AP-2440-4167
ASHandle:       AS4167
RegDate:        2026-03-03
Updated:        2026-03-03    
Ref:            https://rdap.arin.net/registry/autnum/4167


OrgName:        Anthropic, PBC
OrgId:          AP-2440
Address:        548 Market St.
Address:        PMB 90375
City:           San Francisco
StateProv:      CA
PostalCode:     94104-5401
Country:        US
RegDate:        2023-07-31
Updated:        2023-08-22
Ref:            https://rdap.arin.net/registry/entity/AP-2440


OrgNOCHandle: ANTHR5-ARIN
OrgNOCName:   Anthropic
OrgNOCPhone:  +1-415-236-0599 
OrgNOCEmail:  arin@anthropic.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ANTHR5-ARIN

OrgDNSHandle: ANTHR5-ARIN
OrgDNSName:   Anthropic
OrgDNSPhone:  +1-415-236-0599 
OrgDNSEmail:  arin@anthropic.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/ANTHR5-ARIN

OrgRoutingHandle: ANTHR5-ARIN
OrgRoutingName:   Anthropic
OrgRoutingPhone:  +1-415-236-0599 
OrgRoutingEmail:  arin@anthropic.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ANTHR5-ARIN

OrgTechHandle: ANTHR5-ARIN
OrgTechName:   Anthropic
OrgTechPhone:  +1-415-236-0599 
OrgTechEmail:  arin@anthropic.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ANTHR5-ARIN

OrgAbuseHandle: ANTHR5-ARIN
OrgAbuseName:   Anthropic
OrgAbusePhone:  +1-415-236-0599 
OrgAbuseEmail:  arin@anthropic.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ANTHR5-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

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Frequently Asked Questions

ASN AS4167 is an Autonomous System Number used to identify a network for BGP internet routing.
AS4167 is listed under Anthropic, PBC.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
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.