| Date | IP Address |
| 2019-02-08 | 192.185.191.244 (ClassC) |
| 2025-11-29 | 192.185.57.121 (ClassC) |
| Date | Domain | IP |
| cpanel.hookinstruments.com | 2025-07-28 | 192.185.57.121 |
| mail.hookinstruments.com | 2025-11-29 | 192.185.57.121 |
| autodiscover.hookinstruments.com | 2025-07-28 | 192.185.57.121 |