| Date | IP Address |
| 2019-02-12 | 51.254.52.239 (ClassC) |
| 2024-07-12 | 104.18.21.85 (ClassC) |
| 2024-08-20 | 104.18.20.85 (ClassC) |
| 2025-10-22 | 104.18.42.95 (ClassC) |
| 2026-02-06 | 172.64.145.161 (ClassC) |
| Date | Domain | IP |
| hotel.jetcost.de | 2024-07-30 | 52.28.222.203 |
| mobile-app.jetcost.de | 2025-05-12 | 104.18.42.95 |
| www.jetcost.de | 2025-05-06 | 172.64.145.161 |