This AS is not currently used to announce prefixes in the global routing table, nor is it used as a visible transit AS.
whois: 402603
IANA has recorded AS5027 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS5027\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: 5027
ASName: ACSIL
ASHandle: AS5027
RegDate: 1995-03-22
Updated: 1995-03-22
Ref: https://rdap.arin.net/registry/autnum/5027
OrgName: Applied Computer Services
OrgId: ACS-15
Address: 15511 South 70th Court
City: Orlando Park
StateProv: IL
PostalCode: 60462
Country: US
RegDate: 1995-03-22
Updated: 2012-10-10
Ref: https://rdap.arin.net/registry/entity/ACS-15
OrgAbuseHandle: DC373-ARIN
OrgAbuseName: Cook, Dan
OrgAbusePhone: +1-708-614-4900
OrgAbuseEmail:
OrgAbuseRef: https://rdap.arin.net/registry/entity/DC373-ARIN
OrgTechHandle: DC373-ARIN
OrgTechName: Cook, Dan
OrgTechPhone: +1-708-614-4900
OrgTechEmail:
OrgTechRef: https://rdap.arin.net/registry/entity/DC373-ARIN
RTechHandle: DC373-ARIN
RTechName: Cook, Dan
RTechPhone: +1-708-614-4900
RTechEmail:
RTechRef: https://rdap.arin.net/registry/entity/DC373-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.
#