| Property | Value |
| webmaster@costargroup.com | |
| NameServer | NS2.NCI.COM |
| Created | 1998-10-06 00:00:00 |
| Changed | 2015-08-25 00:00:00 |
| Expires | 2019-10-05 00:00:00 |
| Registrar | MARKMONITOR INC. |
| Date | IP Address |
| 2019-04-10 | 23.56.175.184 (ClassC) |
| 2019-06-19 | 23.43.164.91 (ClassC) |
| 2020-03-26 | 23.56.175.51 (ClassC) |
| 2024-07-15 | 23.44.175.135 (ClassC) |
| 2024-08-04 | 23.46.228.179 (ClassC) |
| 2024-09-09 | 23.54.19.155 (ClassC) |
| 2024-12-12 | 23.46.228.168 (ClassC) |
| 2024-12-25 | 23.54.19.144 (ClassC) |