AS54583 American College of Surgeons

• IPv4 Prefixes

Country	Announced Prefix	Description	Valid ROA	Parent Prefix	RIR
	38.69.0.0/24	PSINet, Inc.		38.0.0.0/8	ARIN
	38.75.133.0/24	PSINet, Inc.		38.0.0.0/8	ARIN
	198.22.195.0/24	American College of Surgeons		198.22.195.0/24	ARIN

• IPv4 Peers

Country	ASN	Name	Description
	AS7018	ATT-INTERNET4	AT&T Enterprises, LLC
	AS33491	COMCAST-33491	Comcast Cable Communications, LLC
	AS174	COGENT-174	Cogent Communications

• IPv4 Upstreams

Country	ASN	Name	Description
	AS33491	COMCAST-33491	Comcast Cable Communications, LLC
	AS7018	ATT-INTERNET4	AT&T Enterprises, LLC
	AS174	COGENT-174	Cogent Communications

IPv4 Upstream Graph

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IPv4 Upstream Graph

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#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
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# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
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# Copyright 1997-2025, American Registry for Internet Numbers, Ltd.
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ASNumber:       54583
ASName:         54583
ASHandle:       AS54583
RegDate:        2017-11-30
Updated:        2017-11-30
Comment:        Proprietary of American College of Surgeons.    
Ref:            https://rdap.arin.net/registry/autnum/54583


OrgName:        American College of Surgeons
OrgId:          ACS-473
Address:        633 N. St. Clair St
City:           Chicago
StateProv:      IL
PostalCode:     60611
Country:        US
RegDate:        2012-03-22
Updated:        2017-11-22
Ref:            https://rdap.arin.net/registry/entity/ACS-473


OrgNOCHandle: SIDDI42-ARIN
OrgNOCName:   Siddiqui, Atif 
OrgNOCPhone:  +1-312-202-5000 
OrgNOCEmail:  staylor@facs.org
OrgNOCRef:    https://rdap.arin.net/registry/entity/SIDDI42-ARIN

OrgTechHandle: SIDDI42-ARIN
OrgTechName:   Siddiqui, Atif 
OrgTechPhone:  +1-312-202-5000 
OrgTechEmail:  staylor@facs.org
OrgTechRef:    https://rdap.arin.net/registry/entity/SIDDI42-ARIN

OrgAbuseHandle: SIDDI42-ARIN
OrgAbuseName:   Siddiqui, Atif 
OrgAbusePhone:  +1-312-202-5000 
OrgAbuseEmail:  staylor@facs.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SIDDI42-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 1997-2025, American Registry for Internet Numbers, Ltd.
#