| Date | IP Address |
| 2014-06-23 | 82.99.173.227 (ClassC) |
| 2024-08-13 | 82.99.173.171 (ClassC) |
| 2024-09-17 | 82.99.173.173 (ClassC) |
| 2025-01-07 | 5.134.213.82 (ClassC) |
| 2025-01-10 | 185.31.27.161 (ClassC) |
| Date | Domain | IP |
| i.czc.cz | 2023-10-31 | 82.99.173.171 |
| piwik.czc.cz | 2024-05-14 | 82.99.173.182 |
| www.czc.cz | 2024-06-08 | 82.99.173.171 |