| Date | IP Address |
| 2021-03-01 | 78.24.236.81 (ClassC) |
| 2025-05-06 | 78.24.236.92 (ClassC) |
| Date | Domain | IP |
| email.msv1.invalid.kova.cz | 2024-09-17 | 78.24.236.81 |
| antispam.msv1.invalid.kova.cz | 2024-11-04 | 78.24.236.81 |
| auth.invalid.kova.cz | 2025-05-06 | 78.24.236.92 |
| email.invalid.kova.cz | 2025-02-26 | 78.24.236.81 |