| Date | IP Address |
| 2024-07-22 | 18.195.178.107 (ClassC) |
| 2024-10-11 | 18.197.41.228 (ClassC) |
| 2024-10-20 | 18.192.247.106 (ClassC) |
| 2024-11-21 | 35.157.32.45 (ClassC) |
| 2024-12-06 | 52.29.46.66 (ClassC) |
| 2025-01-15 | 52.57.218.97 (ClassC) |
| 2025-04-24 | 18.192.141.109 (ClassC) |
| 2025-07-30 | 18.156.161.164 (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 |