| Date | IP Address |
| 2014-06-22 | 91.121.51.38 (ClassC) |
| 2014-11-04 | 54.192.90.170 (ClassC) |
| 2014-11-06 | 54.192.4.65 (ClassC) |
| 2014-11-12 | 54.192.6.189 (ClassC) |
| 2024-04-21 | 52.19.96.220 (ClassC) |
| 2024-06-20 | 34.254.210.51 (ClassC) |
| 2024-06-26 | 34.241.207.227 (ClassC) |
| 2024-08-12 | 54.171.5.171 (ClassC) |
| 2024-09-08 | 52.211.253.234 (ClassC) |
| 2024-10-08 | 52.19.4.190 (ClassC) |
| 2024-11-08 | 34.251.131.150 (ClassC) |
| 2024-12-04 | 52.212.195.159 (ClassC) |
| 2024-12-23 | 34.241.216.146 (ClassC) |
| 2025-01-04 | 52.17.71.74 (ClassC) |
| 2025-02-09 | 54.246.185.162 (ClassC) |
| 2025-03-13 | 52.50.99.89 (ClassC) |
| 2025-04-02 | 52.51.224.5 (ClassC) |
| 2025-04-13 | 54.154.171.112 (ClassC) |
| 2025-06-12 | 18.238.238.80 (ClassC) |
| 2025-06-26 | 18.161.6.116 (ClassC) |
| 2025-07-16 | 18.161.6.24 (ClassC) |
| 2025-08-11 | 18.161.6.102 (ClassC) |
| 2025-08-22 | 18.161.6.66 (ClassC) |
| 2025-12-01 | 3.169.173.46 (ClassC) |
| 2026-02-21 | 3.169.173.25 (ClassC) |
| Date | Domain | IP |
| barracuda.rumbo.de | 2026-02-01 | 3.169.173.68 |
| exchange.rumbo.de | 2026-01-31 | 3.169.173.46 |
| flug.rumbo.de | 2015-02-16 | 199.83.134.79 |
| www.rumbo.de | 2014-11-06 | 54.192.4.65 |
| mbox.rumbo.de | 2026-02-01 | 3.169.173.68 |