| Date | IP Address |
| 2024-12-26 | 52.29.44.13 (ClassC) |
| 2025-02-03 | 3.126.200.164 (ClassC) |
| 2025-05-23 | 52.29.39.164 (ClassC) |
| 2025-05-27 | 18.196.60.121 (ClassC) |
| 2025-06-27 | 18.185.161.139 (ClassC) |
| 2025-07-13 | 18.192.136.126 (ClassC) |
| 2025-07-18 | 3.127.67.89 (ClassC) |
| 2025-09-03 | 18.196.78.240 (ClassC) |
| 2025-10-09 | 35.157.87.61 (ClassC) |
| Date | Domain | IP |
| api.osnabrueck.citylink.de | 2024-05-13 | 52.28.249.249 |
| test.api.osnabrueck.citylink.de | 2024-12-26 | 52.29.44.13 |