| Date | IP Address |
| 2020-06-20 | 18.194.117.194 (ClassC) |
| 2024-06-24 | 18.193.235.186 (ClassC) |
| 2024-07-27 | 3.123.218.38 (ClassC) |
| 2024-10-04 | 3.125.166.230 (ClassC) |
| 2025-01-21 | 3.126.58.103 (ClassC) |
| 2025-02-03 | 18.196.240.80 (ClassC) |
| 2025-02-18 | 18.159.18.135 (ClassC) |
| 2025-02-26 | 3.78.7.116 (ClassC) |
| 2025-04-10 | 18.195.136.144 (ClassC) |
| 2025-06-13 | 3.127.197.217 (ClassC) |
| 2025-06-19 | 54.93.157.128 (ClassC) |
| 2025-07-21 | 52.57.177.37 (ClassC) |
| 2026-01-15 | 3.127.132.111 (ClassC) |
| 2026-02-16 | 63.181.148.80 (ClassC) |
| Date | Domain | IP |
| api.mobility.rent.sixt.com | 2024-12-19 | 52.49.57.12 |
| api.dev.mobility.rent.sixt.com | 2024-06-24 | 18.193.235.186 |