| Property | Value |
| topcentrum@telecom.cz | |
| NameServer | ns1.systemit.cz |
| Created | 2000-07-18 13:41:00 |
| Changed | 2012-01-12 17:38:20 |
| Expires | 2016-07-18 00:00:00 |
| Registrar | REG-ZONER |
| Date | IP Address |
| 2013-01-03 | 81.31.34.39 (ClassC) |
| 2014-02-26 | 77.93.211.9 (ClassC) |
| 2025-02-01 | 77.93.192.91 (ClassC) |