| Property | Value |
| Name | CoStar Realty Information, Inc. |
| Organization | CoStar Realty Information, Inc. |
| webmaster@COSTARGROUP.COM | |
| Address | 1331 L Street, NW |
| Zip Code | 20005 |
| City | Washington |
| State | DC |
| Country | US |
| Phone | +1.9999999999 |
| Fax | +1.9999999999 |
| NameServer | NS2.COSTAR.COM |
| Created | 1994-11-10 05:00:00 |
| Changed | 2015-01-28 23:23:24 |
| Expires | 2017-11-09 00:00:00 |
| Registrar | NETWORK SOLUTIONS, L |
| Date | IP Address |
| 2018-11-17 | 23.35.150.107 (ClassC) |
| 2018-11-17 | 23.3.97.3 (ClassC) |
| 2018-12-18 | 23.56.175.178 (ClassC) |
| 2019-04-19 | 23.56.175.147 (ClassC) |
| 2019-07-17 | 23.43.164.104 (ClassC) |
| 2019-11-05 | 23.42.158.41 (ClassC) |
| 2019-11-20 | 23.56.168.225 (ClassC) |
| 2020-07-01 | 23.62.239.44 (ClassC) |
| 2020-07-02 | 23.54.164.138 (ClassC) |
| 2020-10-02 | 184.51.3.155 (ClassC) |
| 2024-07-24 | 23.46.17.20 (ClassC) |
| 2024-08-04 | 23.55.167.16 (ClassC) |
| 2024-09-03 | 23.46.17.13 (ClassC) |
| 2024-10-02 | 23.46.17.21 (ClassC) |
| 2024-11-10 | 23.55.167.11 (ClassC) |
| 2025-01-06 | 23.192.230.88 (ClassC) |
| 2025-02-22 | 23.54.19.192 (ClassC) |
| 2025-03-23 | 23.46.228.169 (ClassC) |
| 2025-03-30 | 23.55.111.203 (ClassC) |