This AS is not currently used to announce prefixes in the global routing table, nor is it used as a visible transit AS.
whois: 402609
IANA has recorded AS4512 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS4512\n
#
# 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: 4512
ASName: PCWNET
ASHandle: AS4512
RegDate: 1995-04-05
Updated: 1995-04-05
Ref: https://rdap.arin.net/registry/autnum/4512
OrgName: PCW Microsystem, Inc.
OrgId: PMS-69
Address: 134 Linden Ave
City: Wstbury
StateProv: NY
PostalCode: 11590
Country: US
RegDate: 1995-04-05
Updated: 2007-10-01
Ref: https://rdap.arin.net/registry/entity/PMS-69
OrgNOCHandle: JW395-ARIN
OrgNOCName: Wu, John
OrgNOCPhone: +1-516-997-5050
OrgNOCEmail: postmaster@pcwnet.com
OrgNOCRef: https://rdap.arin.net/registry/entity/JW395-ARIN
OrgAbuseHandle: JW395-ARIN
OrgAbuseName: Wu, John
OrgAbusePhone: +1-516-997-5050
OrgAbuseEmail: postmaster@pcwnet.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/JW395-ARIN
OrgTechHandle: JW395-ARIN
OrgTechName: Wu, John
OrgTechPhone: +1-516-997-5050
OrgTechEmail: postmaster@pcwnet.com
OrgTechRef: https://rdap.arin.net/registry/entity/JW395-ARIN
RTechHandle: JW395-ARIN
RTechName: Wu, John
RTechPhone: +1-516-997-5050
RTechEmail: postmaster@pcwnet.com
RTechRef: https://rdap.arin.net/registry/entity/JW395-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.
#