| Date | IP Address |
| 2019-11-28 | 85.13.162.1 (ClassC) |
| 2025-01-12 | 85.13.131.149 (ClassC) |
| Date | Domain | IP |
| ns2.dortrecht.de | 2025-01-12 | 85.13.131.149 |
| postmaster.dortrecht.de | 2024-10-20 | 85.13.131.149 |
| mailhost.dortrecht.de | 2025-01-12 | 85.13.131.149 |
| mx.dortrecht.de | 2024-10-02 | 85.13.131.149 |