| Date | IP Address |
| 2024-09-28 | 89.191.91.76 (ClassC) |
| 2025-01-09 | 185.91.25.87 (ClassC) |
| Date | Domain | IP |
| cella.handyvertrag.check24.de | 2024-11-09 | 89.191.91.76 |
| d.handyvertrag.check24.de | 2024-12-27 | 62.201.170.37 |
| storage.handyvertrag.check24.de | 2024-09-28 | 89.191.91.76 |
| pub-api.handyvertrag.check24.de | 2024-10-28 | 89.191.91.74 |