AS14652 COSTAR GROUP Inc.

COSTARGROUPASN - COSTAR GROUP Inc. · registered in the United States

IPv4 addresses3,07210 prefixes · <0.001% of announced IPv4

Rank in United States#5,318largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#18,587of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS14652 in ASN lookup Look up an IP in this network (8.39.162.1) All networks in United States

IPv4 prefixes

All 10 prefixes, in address order.

8.39.162.0/24
8.43.77.0/24
38.103.15.0/24
38.109.150.0/24
63.86.105.0/24
65.210.23.0/24
65.210.120.0/24
65.222.180.0/23
65.246.30.0/24
97.65.16.0/23

Other ASNs named COSTAR GROUP Inc.

1 other network uses the same organisation name; together with AS14652 they announce 3,840 IPv4 addresses.

ASNNameIPv4 addresses

AS11160COSTAR-SANDIEGO - COSTAR GROUP Inc. US768

Similar-sized networks in United States

ASNNameIPv4 addresses

AS14222#5315 NFCU-AS - Navy Federal Credit Union3,072

AS14488#5316 WKYBB - City of Williamstown3,072

AS14606#5317 CCCFIBER - Cherry Capital Connection, LLC3,072

AS14653#5319 PULSAR360 - Pulsar3603,072

AS14695#5320 EL-RENO-MUNICIPAL-AUTHORITY - City of El Reno3,072

AS15036#5321 TOWN-OF-PINEVILLE - Town of Pineville3,072

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources