| Date | IP Address |
| 2023-08-16 | 3.213.89.128 (ClassC) |
| 2025-09-02 | 172.64.148.30 (ClassC) |
| 2025-11-27 | 104.18.39.226 (ClassC) |
| Date | Domain | IP |
| api.prep-u.com | 2023-08-16 | 3.213.89.128 |
| webapp.prep-u.com | 2022-04-25 | 100.25.106.68 |
| support.prep-u.com | 2025-11-26 | 104.18.39.226 |