| Date | IP Address |
| 2025-03-06 | 204.246.191.129 (ClassC) |
| 2025-03-15 | 204.246.191.85 (ClassC) |
| 2025-06-12 | 204.246.191.41 (ClassC) |
| 2025-08-17 | 18.161.6.116 (ClassC) |
| 2025-10-26 | 3.169.173.54 (ClassC) |
| Date | Domain | IP |
| dev3.staff-backend.studyportaldev.trygroup.co.jp | 2025-03-23 | 18.179.102.112 |
| dev.staff-backend.studyportaldev.trygroup.co.jp | 2025-03-06 | 54.248.89.27 |
| dev.backend.studyportaldev.trygroup.co.jp | 2025-03-05 | 57.181.18.2 |
| dev.staff.studyportaldev.trygroup.co.jp | 2025-03-05 | 204.246.191.19 |
| dev.storybook.studyportaldev.trygroup.co.jp | 2025-03-06 | 204.246.191.111 |
| dev.guardian.studyportaldev.trygroup.co.jp | 2025-03-05 | 18.161.6.98 |
| dev.cdn.studyportaldev.trygroup.co.jp | 2025-03-06 | 204.246.191.129 |
| dev.teacher.studyportaldev.trygroup.co.jp | 2025-03-06 | 99.84.66.36 |
| dev.student.studyportaldev.trygroup.co.jp | 2025-03-06 | 99.84.66.107 |