| Date | IP Address |
| 2023-09-29 | 18.198.198.224 (ClassC) |
| 2024-04-12 | 3.120.56.72 (ClassC) |
| 2024-05-13 | 3.69.180.135 (ClassC) |
| 2024-06-24 | 18.194.178.133 (ClassC) |
| 2024-07-23 | 3.122.182.116 (ClassC) |
| 2024-07-30 | 52.59.146.118 (ClassC) |
| 2024-09-21 | 52.57.231.114 (ClassC) |
| 2024-10-19 | 3.77.93.143 (ClassC) |
| 2024-12-06 | 52.59.60.91 (ClassC) |
| 2024-12-26 | 3.125.108.239 (ClassC) |
| 2025-01-07 | 18.158.22.129 (ClassC) |
| 2025-03-01 | 52.28.22.0 (ClassC) |
| 2025-03-15 | 52.28.148.8 (ClassC) |
| 2025-04-29 | 3.67.62.115 (ClassC) |
| 2025-07-31 | 18.185.204.182 (ClassC) |
| Date | Domain | IP |
| preprod.rtl.billwerk.com | 2024-04-09 | 18.156.20.247 |
| selfservice.preprod.rtl.billwerk.com | 2023-09-29 | 18.198.198.224 |
| hq.preprod.rtl.billwerk.com | 2024-07-22 | 18.195.178.107 |
| selfservice.rtl.billwerk.com | 2025-06-27 | 3.33.237.126 |