| Property | Value |
| webmaster@costargroup.com | |
| NameServer | NS-B.PNAP.NET |
| Created | 1995-07-29 00:00:00 |
| Changed | 2014-12-20 00:00:00 |
| Expires | 2017-07-28 00:00:00 |
| Registrar | MARKMONITOR INC. |
| Date | IP Address |
| 2020-03-23 | 23.56.168.216 (ClassC) |
| 2020-04-23 | 23.10.248.24 (ClassC) |
| 2024-07-07 | 23.59.154.98 (ClassC) |
| 2024-07-21 | 23.46.17.16 (ClassC) |
| 2024-09-09 | 23.54.19.120 (ClassC) |
| 2024-10-06 | 23.46.17.6 (ClassC) |
| 2024-11-25 | 23.46.17.41 (ClassC) |
| 2024-12-19 | 23.54.19.144 (ClassC) |
| 2025-04-23 | 23.46.228.165 (ClassC) |
| 2025-05-06 | 23.46.228.179 (ClassC) |