ASN AS32743 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS32743?

AS32743 is listed under U.S. COLO, LLC.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS32743 U.S. COLO, LLC | IPGeolocation.io

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U.S. COLO, LLC coresite.com

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AS Data

AS32743

AS32743 – U.S. COLO, LLC

AS Number	32743
AS Name	USCOLO-RETIRED
Organization	U.S. COLO, LLC(uscolo)
Country	US
Website	coresite.com
Number of IPv4 Routes	0
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2004-07-15

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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:       32743
ASName:         USCOLO-RETIRED
ASHandle:       AS32743
RegDate:        2004-07-15
Updated:        2022-10-03    
Ref:            https://rdap.arin.net/registry/autnum/32743


OrgName:        U.S. COLO, LLC
OrgId:          USCOLO
Address:        1001 17th St
City:           Denver
StateProv:      CO
PostalCode:     80202
Country:        US
RegDate:        2000-09-02
Updated:        2021-12-30
Ref:            https://rdap.arin.net/registry/entity/USCOLO


OrgTechHandle: JENSE37-ARIN
OrgTechName:   Jensen, John 
OrgTechPhone:  +1-571-612-7142 
OrgTechEmail:  john.jensen@coresite.com
OrgTechRef:    https://rdap.arin.net/registry/entity/JENSE37-ARIN

OrgTechHandle: JFA116-ARIN
OrgTechName:   Favis, Jerome 
OrgTechPhone:  +1-213-327-1208 
OrgTechEmail:  jerome.favis@coresite.com
OrgTechRef:    https://rdap.arin.net/registry/entity/JFA116-ARIN

OrgAbuseHandle: CORES5-ARIN
OrgAbuseName:   CoreSite Abuse
OrgAbusePhone:  +1-866-777-2673 
OrgAbuseEmail:  abuse@coresite.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CORES5-ARIN

OrgNOCHandle: CORES4-ARIN
OrgNOCName:   Coresite OSC
OrgNOCPhone:  +1-866-777-2673 
OrgNOCEmail:  osc@coresite.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/CORES4-ARIN

OrgTechHandle: REEDC55-ARIN
OrgTechName:   Reed, Christopher 
OrgTechPhone:  +1-213-327-1203 
OrgTechEmail:  chris.reed@coresite.com
OrgTechRef:    https://rdap.arin.net/registry/entity/REEDC55-ARIN

OrgTechHandle: STANL503-ARIN
OrgTechName:   Stanley, Michael 
OrgTechPhone:  +1-202-827-7002 
OrgTechEmail:  michael.stanley@coresite.com
OrgTechRef:    https://rdap.arin.net/registry/entity/STANL503-ARIN

OrgTechHandle: CMM8-ARIN
OrgTechName:   Malayter, Christopher Michael
OrgTechPhone:  +1-608-301-5180 
OrgTechEmail:  chris.malayter@coresite.com
OrgTechRef:    https://rdap.arin.net/registry/entity/CMM8-ARIN

RNOCHandle: CORES4-ARIN
RNOCName:   Coresite OSC
RNOCPhone:  +1-866-777-2673 
RNOCEmail:  osc@coresite.com
RNOCRef:    https://rdap.arin.net/registry/entity/CORES4-ARIN

RTechHandle: CMM8-ARIN
RTechName:   Malayter, Christopher Michael
RTechPhone:  +1-608-301-5180 
RTechEmail:  chris.malayter@coresite.com
RTechRef:    https://rdap.arin.net/registry/entity/CMM8-ARIN

RAbuseHandle: CORES5-ARIN
RAbuseName:   CoreSite Abuse
RAbusePhone:  +1-866-777-2673 
RAbuseEmail:  abuse@coresite.com
RAbuseRef:    https://rdap.arin.net/registry/entity/CORES5-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.
#