| Date | IP Address |
| 2020-12-18 | 172.247.228.77 (ClassC) |
| 2025-11-16 | 51.38.118.40 (ClassC) |
| Date | Domain | IP |
| server1.opticaltest.com | 2025-11-03 | 51.38.118.40 |
| mx02.opticaltest.com | 2025-11-04 | 51.38.118.40 |
| email.opticaltest.com | 2025-10-07 | 76.223.17.250 |
| postmaster.opticaltest.com | 2025-11-03 | 51.38.118.40 |
| server.opticaltest.com | 2025-11-04 | 51.38.118.40 |
| gw.opticaltest.com | 2025-10-16 | 51.38.118.40 |
| www.opticaltest.com | 2015-02-25 | 128.199.98.188 |
| mx.opticaltest.com | 2025-10-07 | 51.38.118.40 |
| a.mx.opticaltest.com | 2025-08-08 | 51.38.118.40 |
| mbox.opticaltest.com | 2025-11-16 | 51.38.118.40 |