| Date | IP Address |
| 2025-05-08 | 104.21.81.188 (ClassC) |
| 2025-08-08 | 172.67.190.73 (ClassC) |
| 2026-01-21 | 162.159.134.42 (ClassC) |
| Date | Domain | IP |
| secure.hep.org.au | 2025-08-03 | 103.87.39.241 |
| mail.hep.org.au | 2025-09-22 | 180.189.152.130 |
| autodiscover.hep.org.au | 2025-03-21 | 52.96.121.40 |