| Date | IP Address |
| 2021-03-16 | 85.13.138.239 (ClassC) |
| 2024-11-08 | 85.13.147.187 (ClassC) |
| Date | Domain | IP |
| mail4.beuth.org | 2024-07-14 | 85.13.147.187 |
| email.beuth.org | 2024-11-08 | 85.13.147.187 |
| authsmtp.beuth.org | 2024-11-08 | 85.13.147.187 |
| hermes.beuth.org | 2024-07-14 | 85.13.147.187 |
| dev.beuth.org | 2024-10-16 | 85.13.147.187 |
| a.mx.beuth.org | 2024-07-13 | 85.13.147.187 |
| box.beuth.org | 2024-07-18 | 85.13.147.187 |