| 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 |
| 2015-04-06 | 128.177.96.88 (ClassC) |
| 2020-09-06 | 23.35.133.5 (ClassC) |
| 2021-08-31 | 23.35.76.174 (ClassC) |
| 2023-08-25 | 104.73.2.87 (ClassC) |
| 2023-12-11 | 104.73.1.155 (ClassC) |
| 2024-04-12 | 23.213.37.49 (ClassC) |
| 2024-05-03 | 96.7.157.141 (ClassC) |
| 2024-06-18 | 23.54.153.137 (ClassC) |
| 2024-08-21 | 23.218.185.136 (ClassC) |
| 2024-11-15 | 23.206.49.179 (ClassC) |
| 2024-12-14 | 104.71.213.156 (ClassC) |
| 2024-12-26 | 184.31.205.137 (ClassC) |
| 2025-03-15 | 23.194.185.175 (ClassC) |
| 2025-09-07 | 184.31.201.137 (ClassC) |
| 2025-10-09 | 184.28.3.163 (ClassC) |
| 2025-11-01 | 23.217.131.92 (ClassC) |
| 2026-01-19 | 184.27.179.169 (ClassC) |