| Date | IP Address |
| 2025-01-06 | 213.86.106.12 (ClassC) |
| Date | Domain | IP |
| owa.ingenhoven.org | 2024-12-09 | 213.86.106.9 |
| fotoweb.ingenhoven.org | 2025-01-06 | 213.86.106.12 |
| datashare.ingenhoven.org | 2024-11-26 | 213.86.106.10 |
| timecontrol.ingenhoven.org | 2024-11-26 | 213.86.106.7 |
| sslvpn.ingenhoven.org | 2024-12-09 | 213.86.106.6 |
| autodiscover.ingenhoven.org | 2024-12-09 | 213.86.106.9 |
| www.ingenhoven.org | 2024-11-26 | 217.111.34.227 |