| Date | IP Address |
| 2025-01-08 | 78.46.166.34 (ClassC) |
| Date | Domain | IP |
| mail01.porr.at | 2024-09-12 | 195.216.229.69 |
| ns1.porr.at | 2024-11-25 | 62.99.145.170 |
| mail02.porr.at | 2024-09-12 | 195.216.229.71 |
| ns2.porr.at | 2024-11-25 | 195.216.229.8 |
| ns3.porr.at | 2024-11-25 | 195.216.229.7 |
| ns4.porr.at | 2024-11-25 | 80.240.228.202 |
| konzern.porr.at | 2024-11-26 | 195.216.229.6 |
| engage.konzern.porr.at | 2024-09-12 | 195.216.229.114 |
| strauss-pm.konzern.porr.at | 2024-09-12 | 195.216.229.113 |
| whbs.porr.at | 2024-11-25 | 5.183.218.62 |
| www.porr.at | 2025-01-08 | 78.46.166.34 |