| 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 |
| 2022-10-26 | 23.215.124.5 (ClassC) |
| 2025-11-30 | 184.27.178.7 (ClassC) |