| Date | IP Address |
| 2020-10-29 | 99.84.191.3 (ClassC) |
| 2020-10-29 | 99.84.191.71 (ClassC) |
| 2020-10-29 | 99.84.191.90 (ClassC) |
| 2024-07-13 | 3.163.24.2 (ClassC) |
| 2024-09-23 | 3.163.24.116 (ClassC) |
| 2024-12-21 | 3.163.158.127 (ClassC) |
| 2025-01-26 | 3.163.158.102 (ClassC) |
| 2025-04-22 | 204.246.191.91 (ClassC) |
| 2025-08-01 | 204.246.191.66 (ClassC) |
| Date | Domain | IP |
| api.ustec.co.jp | 2025-03-04 | 35.75.52.198 |
| dev.api.ustec.co.jp | 2024-07-13 | 3.163.24.2 |
| dev.phr.ustec.co.jp | 2025-04-26 | 99.84.66.57 |
| gats.ustec.co.jp | 2024-07-02 | 18.161.6.21 |