| Date | IP Address |
| 2024-05-17 | 89.191.86.216 (ClassC) |
| 2024-08-21 | 89.191.69.120 (ClassC) |
| 2025-01-09 | 89.191.92.207 (ClassC) |
| Date | Domain | IP |
| appmiddleware.check24.es | 2023-10-19 | 89.191.86.214 |
| hotel.check24.es | 2024-12-10 | 89.191.91.251 |
| n.check24.es | 2024-12-26 | 37.208.111.5 |
| app.check24.es | 2023-10-31 | 89.191.86.214 |
| seguros.check24.es | 2024-12-11 | 3.163.158.68 |
| test.seguros.check24.es | 2024-12-11 | 89.191.92.201 |
| www.check24.es | 2023-12-11 | 89.191.86.216 |