
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 AS13891 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS13891\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: 13891
ASName: 21ST-CENTURY-ONCOLOGY-INC
ASHandle: AS13891
RegDate: 2006-04-10
Updated: 2010-01-28
Ref: https://rdap.arin.net/registry/autnum/13891
OrgName: GENESISCARE USA OF FLORIDA, LLC
OrgId: 2CO
Address: 2234 Colonial Blvd
City: Fort Myers
StateProv: FL
PostalCode: 33907
Country: US
RegDate: 2006-01-30
Updated: 2025-07-09
Ref: https://rdap.arin.net/registry/entity/2CO
OrgNOCHandle: PERRY496-ARIN
OrgNOCName: Perry, Howard
OrgNOCPhone: +1-402-982-9017
OrgNOCEmail: howard.perry@usa.genesiscare.com
OrgNOCRef: https://rdap.arin.net/registry/entity/PERRY496-ARIN
OrgTechHandle: PERRY496-ARIN
OrgTechName: Perry, Howard
OrgTechPhone: +1-402-982-9017
OrgTechEmail: howard.perry@usa.genesiscare.com
OrgTechRef: https://rdap.arin.net/registry/entity/PERRY496-ARIN
OrgRoutingHandle: PERRY496-ARIN
OrgRoutingName: Perry, Howard
OrgRoutingPhone: +1-402-982-9017
OrgRoutingEmail: howard.perry@usa.genesiscare.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/PERRY496-ARIN
OrgDNSHandle: PERRY496-ARIN
OrgDNSName: Perry, Howard
OrgDNSPhone: +1-402-982-9017
OrgDNSEmail: howard.perry@usa.genesiscare.com
OrgDNSRef: https://rdap.arin.net/registry/entity/PERRY496-ARIN
OrgAbuseHandle: PERRY496-ARIN
OrgAbuseName: Perry, Howard
OrgAbusePhone: +1-402-982-9017
OrgAbuseEmail: howard.perry@usa.genesiscare.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/PERRY496-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.
#