| Property | Value |
| webmaster@costargroup.com | |
| NameServer | NS2.COSTAR.COM |
| Created | 1996-09-02 00:00:00 |
| Changed | 2014-09-19 00:00:00 |
| Expires | 2015-11-03 00:00:00 |
| Registrar | MARKMONITOR INC. |
| Date | IP Address |
| 2021-12-22 | 23.66.127.174 (ClassC) |
| 2022-03-28 | 23.66.127.156 (ClassC) |
| 2022-04-08 | 172.232.13.33 (ClassC) |
| 2022-10-20 | 23.220.144.133 (ClassC) |
| 2023-02-27 | 23.35.71.82 (ClassC) |
| 2024-06-27 | 23.47.72.6 (ClassC) |
| 2024-08-05 | 23.46.228.169 (ClassC) |
| 2024-08-20 | 23.54.19.147 (ClassC) |
| 2024-09-06 | 23.46.17.30 (ClassC) |
| 2024-12-22 | 23.46.228.175 (ClassC) |