| Date | IP Address |
| 2019-01-18 | 52.84.146.160 (ClassC) |
| 2019-01-18 | 52.84.146.180 (ClassC) |
| 2019-01-18 | 52.84.146.109 (ClassC) |
| 2019-01-18 | 52.84.146.151 (ClassC) |
| 2020-02-17 | 13.249.89.10 (ClassC) |
| 2021-12-17 | 52.85.146.111 (ClassC) |
| 2021-12-17 | 52.85.146.8 (ClassC) |
| 2021-12-17 | 52.85.146.9 (ClassC) |
| 2024-02-20 | 204.246.191.38 (ClassC) |
| 2024-12-25 | 108.138.94.52 (ClassC) |
| 2025-03-26 | 204.246.191.116 (ClassC) |
| 2025-07-17 | 204.246.191.82 (ClassC) |
| 2025-12-24 | 3.169.173.35 (ClassC) |
| 2026-01-11 | 3.169.173.31 (ClassC) |
| Date | Domain | IP |
| mx10.groundschool.com | 2024-07-04 | 3.163.24.39 |
| captiveportal101.groundschool.com | 2024-09-30 | 3.163.158.16 |
| mail9.groundschool.com | 2024-02-16 | 3.163.24.39 |
| comune.groundschool.com | 2024-02-20 | 3.163.24.13 |
| pilotrise.groundschool.com | 2024-08-08 | 3.163.24.39 |
| auth.groundschool.com | 2024-03-10 | 204.246.191.70 |
| 3423069cfi.groundschool.com | 2024-08-13 | 3.163.24.28 |
| api.groundschool.com | 2024-06-07 | 204.246.191.69 |
| flyfallbrook.groundschool.com | 2024-07-28 | 3.163.24.61 |
| faa-ppl.groundschool.com | 2024-03-15 | 3.163.24.61 |
| cdn.groundschool.com | 2024-02-20 | 204.246.191.38 |
| blackhoundaviation.groundschool.com | 2024-09-19 | 3.163.24.28 |
| hightideaviation.groundschool.com | 2026-01-03 | 3.175.34.55 |
| aboveaviation.groundschool.com | 2024-02-29 | 13.227.74.23 |
| art.groundschool.com | 2024-11-29 | 3.163.24.28 |
| www.groundschool.com | 2025-02-04 | 99.86.38.110 |