| Date | IP Address |
| 2024-05-13 | 52.196.30.10 (ClassC) |
| 2024-06-03 | 18.178.115.183 (ClassC) |
| 2024-10-29 | 52.196.242.98 (ClassC) |
| 2024-12-01 | 54.238.32.144 (ClassC) |
| 2025-01-30 | 13.230.154.9 (ClassC) |
| Date | Domain | IP |
| stg.rssystem.go.jp | 2024-05-13 | 52.194.175.8 |
| ext-api.stg.rssystem.go.jp | 2024-05-13 | 52.196.30.10 |
| app.stg.rssystem.go.jp | 2024-05-13 | 54.64.79.78 |