| Date | IP Address |
| 2024-08-21 | 89.191.91.75 (ClassC) |
| 2026-02-20 | 185.91.25.75 (ClassC) |
| Date | Domain | IP |
| cella.handytarife.check24.de | 2024-10-02 | 89.191.91.75 |
| d.handytarife.check24.de | 2025-07-20 | 62.201.170.37 |
| storage.handytarife.check24.de | 2024-08-21 | 89.191.91.75 |
| msg.handytarife.check24.de | 2024-10-02 | 89.191.91.75 |
| pub-api.handytarife.check24.de | 2024-10-02 | 89.191.91.75 |
| m.handytarife.check24.de | 2024-08-14 | 89.191.91.75 |
| n.handytarife.check24.de | 2024-08-31 | 89.191.91.75 |
| assets.handytarife.check24.de | 2024-09-27 | 89.191.91.75 |
| chatbot.handytarife.check24.de | 2024-09-14 | 89.191.91.75 |