AS Name Org Name IPv4Prefixes IPv6Prefixes IPv4 NUMs IPv6 NUMs(/64) Registry Region Looking Glass
COSTARGROUPASN COSTAR GROUP 10 0 3,072 0 United States
3,072 IPv4 Addresses
CIDR Description IP Num
8.39.162.0/24 Level 3 Parent, LLC 256
8.43.77.0/24 COSTAR GROUP 256
38.103.15.0/24 COSTAR GROUP INC 256
38.109.150.0/24 COSTAR GROUP INC 256
63.86.105.0/24 COSTAR GROUP, INC. (C02561828) 256
65.210.23.0/24 MCI Communications Services, Inc. d/b/a Verizon Business 256
65.210.120.0/24 COSTAR REALTY (C05585296) 256
65.213.201.0/24 COSTAR REALTY (C05114191) 256
65.222.180.0/23 COSTAR GROUP INC (C01544360) 512
97.65.16.0/23 COSTAR GROUP 512
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS174 COGENT-174 - Cogent Communications, US United States 27,800,064 314,391,003,136 IPv4 IPv4
AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business, US United States 42,637,568 1,241,262,784,512 IPv4 IPv4
AS3356 LEVEL3 - Level 3 Parent, LLC, US United States 39,529,896 124,574,040,064 IPv4 IPv4
AS3549 LVLT-3549 - Level 3 Parent, LLC, US United States 6,304,896 128,879,493,120 IPv4 IPv4
IP Address Domain NUMs Domains
38.103.15.143 1 ns.gbltd.com
ASNumber:       14652
ASName:         COSTARGROUPASN
ASHandle:       AS14652
RegDate:        2000-01-20
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/14652


OrgName:        COSTAR GROUP
OrgId:          COSTAR-2
Address:        2 Bethesda Metro Ctr.
Address:        10th Floor
City:           Bethesda
StateProv:      MD
PostalCode:     20814
Country:        US
RegDate:        2000-01-06
Updated:        2011-09-24
Comment:        CoStar Group, Inc.
Ref:            https://rdap.arin.net/registry/entity/COSTAR-2


OrgAbuseHandle: GPG-ARIN
OrgAbuseName:   Guidi, Gino Pietro
OrgAbusePhone:  +1-858-578-3000 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/GPG-ARIN

OrgTechHandle: GPG-ARIN
OrgTechName:   Guidi, Gino Pietro
OrgTechPhone:  +1-858-578-3000 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/GPG-ARIN

RTechHandle: TC346-ARIN
RTechName:   Chambers, Tom 
RTechPhone:  +1-301-215-8335 
RTechEmail:  [email protected]
RTechRef:    https://rdap.arin.net/registry/entity/TC346-ARIN