| Date | IP Address |
| 2024-05-13 | 54.64.79.78 (ClassC) |
| 2024-06-03 | 52.69.96.197 (ClassC) |
| 2024-08-25 | 52.197.222.219 (ClassC) |
| 2025-02-07 | 54.238.217.48 (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 |