| Date | IP Address |
| 2025-01-29 | 91.102.137.149 (ClassC) |
| Date | Domain | IP |
| service.kreis-guetersloh.de | 2024-11-22 | 91.102.137.195 |
| autodiscover.kreis-guetersloh.de | 2024-12-30 | 91.102.137.149 |
| webgis.kreis-guetersloh.de | 2024-10-11 | 91.102.137.108 |
| www.kreis-guetersloh.de | 2024-11-28 | 91.102.137.149 |