ASN AS2721 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS2721?

AS2721 is listed under CULR, 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.

AS2721 CULR, LLC | IPGeolocation.io

ASN Lookup Tool

CULR, LLC clemson.edu

US 5 Routes

AS Data

AS2721

AS2721 – CULR, LLC

AS Number	2721
AS Name	SCLR
Organization	CULR, LLC(culrl)
Country	US
Website	clemson.edu
Number of IPv4 Routes	4
Number of IPv6 Routes	1
ASN type	EDUCATION
Registry	ARIN
Date Allocated	2009-08-28

ASN Intelligence API for production workflows

Use ASN data for AS2721 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
205.186.47.0/24	AS2721	CULR, LLC	CULR, LLC	256
205.186.224.0/19	AS2721	CULR, LLC	CULR, LLC	8192
205.186.226.0/24	AS2721	CULR, LLC	CULR, LLC	256
2606:c000::/32	AS2721	CULR, LLC	CULR, LLC	~79×10²⁷
205.186.46.0/24	AS2721	CULR, LLC	CULR, LLC	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:       2721
ASName:         SCLR
ASHandle:       AS2721
RegDate:        2009-08-28
Updated:        2016-02-04    
Ref:            https://rdap.arin.net/registry/autnum/2721


OrgName:        CULR, LLC
OrgId:          CULRL
Address:        110 Daniel Drive
City:           Clemson
StateProv:      SC
PostalCode:     29631
Country:        US
RegDate:        2009-02-17
Updated:        2024-11-25
Ref:            https://rdap.arin.net/registry/entity/CULRL


OrgAbuseHandle: NETWO2687-ARIN
OrgAbuseName:   Network Abuse
OrgAbusePhone:  +1-864-656-3493 
OrgAbuseEmail:  abuse@clemson.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO2687-ARIN

OrgNOCHandle: NOC3212-ARIN
OrgNOCName:   Network Operations Center
OrgNOCPhone:  +1-864-656-4634 
OrgNOCEmail:  noc@clemson.edu
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC3212-ARIN

OrgTechHandle: CUTEC-ARIN
OrgTechName:   CU-TECHS-ARIN
OrgTechPhone:  +1-864-656-4634 
OrgTechEmail:  CU-TECHS-ARIN@lists.clemson.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/CUTEC-ARIN

RTechHandle: CUTEC-ARIN
RTechName:   CU-TECHS-ARIN
RTechPhone:  +1-864-656-4634 
RTechEmail:  CU-TECHS-ARIN@lists.clemson.edu
RTechRef:    https://rdap.arin.net/registry/entity/CUTEC-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.
#

Parsed Whois Response

Peers

AS Number	Description	Country
AS2711	Spirit Communications	US
AS2722	CULR, LLC	US
AS13429	Medical University of South Carolina	US
AS1239	Cogent Communications, LLC	US
AS13548	College of Charleston	US
AS11537	Internet2	US
AS286	GTT Communications Inc.	NL
AS286	GTT Communications Inc.	US
AS3257	GTT Communications Inc.	US
AS11164	Internet2	US

Upstreams

AS Number	Description	Country
AS2711	Spirit Communications	US
AS2722	CULR, LLC	US
AS11537	Internet2	US
AS286	GTT Communications Inc.	US
AS11164	Internet2	US
AS3257	GTT Communications Inc.	US
AS174	Cogent Communications, LLC	US

Downstreams

AS Number	Description	Country
AS2722	CULR, LLC	US
AS13429	Medical University of South Carolina	US
AS13548	College of Charleston	US

Contacts

Email Contacts

CU-TECHS-ARIN@lists.clemson.edu

Abuse Contacts

abuse@clemson.edu

Legacy Routes

192.188.108.0/24