| Date | IP Address |
| 2022-10-13 | 3.66.251.197 (ClassC) |
| 2023-08-28 | 3.120.226.112 (ClassC) |
| 2024-05-02 | 35.158.206.73 (ClassC) |
| 2024-11-24 | 3.121.1.126 (ClassC) |
| 2025-01-04 | 18.194.211.116 (ClassC) |
| 2025-04-30 | 35.157.53.225 (ClassC) |
| 2025-06-04 | 52.28.119.236 (ClassC) |
| 2025-06-21 | 3.123.70.20 (ClassC) |
| 2025-06-27 | 3.126.226.99 (ClassC) |
| 2025-08-20 | 3.124.202.167 (ClassC) |
| 2025-08-30 | 18.194.225.41 (ClassC) |
| 2025-09-08 | 3.124.220.221 (ClassC) |
| 2025-10-10 | 52.29.108.134 (ClassC) |
| 2026-02-11 | 3.126.25.159 (ClassC) |
| Date | Domain | IP |
| ww2.umfragecenter.at | 2023-08-28 | 3.120.226.112 |
| tucareer.umfragecenter.at | 2023-08-28 | 3.65.172.86 |
| www.umfragecenter.at | 2023-08-28 | 3.120.226.112 |