AS14652
COSTAR GROUP Inc.
AS14652 is COSTAR GROUP Inc. (costar.com). It announces 3,072 IPv4 addresses in 10 prefixes, and 0 IPv6 prefixes.
United States· ARIN· allocated 2000-01-20· business
3,072
IPv4 addresses announced
10
IPv4 prefixes
0
IPv6 prefixes
0.00%
of its routes RPKI-valid
3,072
of its IPv4 geolocated
1
country
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- United States3,072 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- COSTARGROUPASN
- name
- COSTAR GROUP Inc.
- org
- COSTAR-2
- org name
- COSTAR GROUP Inc.
- org address
- 1331 L St N.W., Washington, DC, 20005-4293
- org city
- Washington
- org country
- US
- country
- US
- source
- arin
- created
- 2000-01-20
- updated
- 2024-08-01
- abuse name
- Costar Network Team
- abuse email
- costarnetworkteam@costar.com
- abuse phone
- +1-800-204-5960
- abuse kind
- role
- abuse city
- Arlington
- abuse country
- US
- admin name
- Ian Stong
- admin email
- istong@costar.com
- admin phone
- +1-202-336-6960
- admin kind
- person
- admin city
- Washington
- admin country
- US
- tech
- TC346-ARIN
- tech name
- Tom Chambers
- tech email
- tchambers@costargroup.com
- tech phone
- +1-301-215-8335
- tech kind
- person
- tech city
- Bethesda
- tech country
- US
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- Carrier IP1,536Verizon50.00%
- None here
- 0.07%
- 0.03%
- 0.07%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 8.39.162.0/24 | United States | not found | 17 | 2026-10-02 |
| 8.43.77.0/24 | United States | not found | 17 | 2026-10-02 |
| 38.103.15.0/24 | United States | not found | 17 | 2026-10-02 |
| 38.109.150.0/24 | United States | not found | 17 | 2026-10-02 |
| 63.86.105.0/24 | United States | not found | 17 | 2026-10-02 |
| 65.210.23.0/24 | United States | not found | 17 | 2026-10-02 |
| 65.210.120.0/24 | United States | not found | 17 | 2026-10-02 |
| 65.222.180.0/23 | United States | not found | 17 | 2026-10-02 |
| 65.246.30.0/24 | United States | not found | 17 | 2026-10-02 |
| 97.65.16.0/23 | United States | not found | 17 | 2026-10-02 |
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