| Date | IP Address |
| 2019-09-23 | 103.9.64.189 (ClassC) |
| 2026-02-10 | 13.75.46.26 (ClassC) |
| Date | Domain | IP |
| sync.cet.asn.au | 2025-09-10 | 122.200.164.164 |
| cpd.cet.asn.au | 2025-07-02 | 203.153.227.178 |
| moodle.cet.asn.au | 2025-06-30 | 122.200.164.164 |
| learning.cet.asn.au | 2025-03-20 | 122.200.164.164 |
| dtportal.cet.asn.au | 2025-02-22 | 136.143.190.199 |
| mail.cet.asn.au | 2025-05-10 | 203.153.227.181 |
| vpn.cet.asn.au | 2025-05-10 | 203.153.227.177 |
| autodiscover.cet.asn.au | 2025-03-20 | 52.96.113.136 |
| www.cet.asn.au | 2026-02-10 | 13.75.46.26 |