AS27451 US Oncology, Inc. | IPGeolocation.io

ASN Lookup Tool

AS Data

IP Routes

Raw Whois

Parsed Whois

Peers

Upstreams

Downstreams

Legacy Routes

AS27451 – US Oncology, Inc.

AS Number	27451
AS Name	USO-ASN
Organization	US Oncology, Inc.(usonc)
Country	US
Website	mckesson.com
Number of IPv4 Routes	3
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2012-03-02

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
38.68.63.0/24	AS27451	US Oncology, Inc.	Cogent Communications, LLC	256
206.203.80.0/24	AS27451	US Oncology, Inc.	McKesson Corp.	256
206.203.81.0/24	AS10599	McKesson Corp.	McKesson Corp.	256

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:       27451
ASName:         USO-ASN
ASHandle:       AS27451
RegDate:        2003-03-10
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/27451


OrgName:        US Oncology, Inc.
OrgId:          USONC
Address:        10101 Woodloch Forest
City:           The Woodlands
StateProv:      TX
PostalCode:     77380
Country:        US
RegDate:        2003-02-25
Updated:        2023-03-22
Comment:        US Oncology Inc is a subsidiary of McKesson.
Ref:            https://rdap.arin.net/registry/entity/USONC


OrgTechHandle: NIT2-ARIN
OrgTechName:   Network Infrastructure Team
OrgTechPhone:  +1-972-446-4800 
OrgTechEmail:  NetworkInfrastructureTeam2@mckesson.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NIT2-ARIN

OrgAbuseHandle: NIT2-ARIN
OrgAbuseName:   Network Infrastructure Team
OrgAbusePhone:  +1-972-446-4800 
OrgAbuseEmail:  NetworkInfrastructureTeam2@mckesson.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NIT2-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.
#