ASN Lookup Tool

COSTAR GROUP Inc. costargroup.com US US 10 Routes

AS Data

AS14652

AS14652 – COSTAR GROUP Inc.

AS Number 14652
AS Name COSTARGROUPASN
Organization COSTAR GROUP Inc.(costar-2)
Country US
Website costargroup.com
Number of IPv4 Routes 10
Number of IPv6 Routes 0
ASN type BUSINESS
Registry ARIN
Date Allocated 2000-01-20

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Use ASN data for AS14652 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
8.39.162.0/24 256
63.86.105.0/24 256
38.109.150.0/24 256
65.246.30.0/24 256
38.103.15.0/24 256
65.210.23.0/24 256
65.210.120.0/24 256
97.65.16.0/23 512
65.222.180.0/23 512
8.43.77.0/24 256

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:       14652
ASName:         COSTARGROUPASN
ASHandle:       AS14652
RegDate:        2000-01-20
Updated:        2024-08-01    
Ref:            https://rdap.arin.net/registry/autnum/14652


OrgName:        COSTAR GROUP Inc.
OrgId:          COSTAR-2
Address:        1331 L St N.W.
City:           Washington
StateProv:      DC
PostalCode:     20005-4293
Country:        US
RegDate:        2000-01-06
Updated:        2024-08-12
Ref:            https://rdap.arin.net/registry/entity/COSTAR-2


OrgAbuseHandle: CNT13-ARIN
OrgAbuseName:   Costar Network Team
OrgAbusePhone:  +1-202-336-6960 
OrgAbuseEmail:  costarnetworkteam@costar.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CNT13-ARIN

OrgDNSHandle: CNT13-ARIN
OrgDNSName:   Costar Network Team
OrgDNSPhone:  +1-202-336-6960 
OrgDNSEmail:  costarnetworkteam@costar.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/CNT13-ARIN

OrgNOCHandle: CNT13-ARIN
OrgNOCName:   Costar Network Team
OrgNOCPhone:  +1-202-336-6960 
OrgNOCEmail:  costarnetworkteam@costar.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/CNT13-ARIN

OrgRoutingHandle: CNT13-ARIN
OrgRoutingName:   Costar Network Team
OrgRoutingPhone:  +1-202-336-6960 
OrgRoutingEmail:  costarnetworkteam@costar.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/CNT13-ARIN

OrgAbuseHandle: STONG5-ARIN
OrgAbuseName:   Stong, Ian 
OrgAbusePhone:  +1-202-336-6960 
OrgAbuseEmail:  istong@costar.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/STONG5-ARIN

OrgTechHandle: STONG5-ARIN
OrgTechName:   Stong, Ian 
OrgTechPhone:  +1-202-336-6960 
OrgTechEmail:  istong@costar.com
OrgTechRef:    https://rdap.arin.net/registry/entity/STONG5-ARIN

OrgTechHandle: CNT13-ARIN
OrgTechName:   Costar Network Team
OrgTechPhone:  +1-202-336-6960 
OrgTechEmail:  costarnetworkteam@costar.com
OrgTechRef:    https://rdap.arin.net/registry/entity/CNT13-ARIN

RTechHandle: TC346-ARIN
RTechName:   Chambers, Tom 
RTechPhone:  +1-301-215-8335 
RTechEmail:  tchambers@costargroup.com
RTechRef:    https://rdap.arin.net/registry/entity/TC346-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
AS3549 Level 3 Communications, Inc. (GBLX) US
AS3549 Level 3 Parent, LLC US
AS1239 Cogent Communications, LLC US
AS701 Verizon Business/UUnet US
AS3356 Level 3 Parent, LLC US
AS174 Cogent Communications, LLC US
AS701 Verizon Business US

Upstreams

AS Number Description Country
AS3549 Level 3 Parent, LLC US
AS3356 Level 3 Parent, LLC US
AS174 Cogent Communications, LLC US
AS701 Verizon Business US

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Frequently Asked Questions

ASN AS14652 is an Autonomous System Number used to identify a network for BGP internet routing.
AS14652 is listed under COSTAR GROUP Inc..
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.