| Date | IP Address |
| 2025-03-21 | 81.19.159.59 (ClassC) |
| Date | Domain | IP |
| moodle.htltraun.at | 2025-02-06 | 81.223.227.222 |
| elternsprechtag.htltraun.at | 2024-09-06 | 81.19.159.59 |
| git.htltraun.at | 2024-08-13 | 81.223.227.220 |
| www.htltraun.at | 2024-08-22 | 81.19.159.59 |
| securityday.htltraun.at | 2023-08-28 | 81.19.159.59 |