| Date | IP Address |
| 2021-02-08 | 5.132.191.67 (ClassC) |
| Date | Domain | IP |
| smtp3.apartment.co.at | 2024-11-13 | 5.132.191.67 |
| mkb.apartment.co.at | 2024-11-13 | 5.132.191.67 |
| mailgate.apartment.co.at | 2024-11-13 | 5.132.191.67 |
| authsmtp.apartment.co.at | 2024-11-13 | 5.132.191.67 |
| www.apartment.co.at | 2023-08-28 | 5.132.191.67 |