| Date | IP Address |
| 2025-02-26 | 18.177.118.16 (ClassC) |
| 2025-10-04 | 43.207.244.91 (ClassC) |
| 2025-11-01 | 52.68.34.214 (ClassC) |
| Date | Domain | IP |
| portal.hotstaff.co.jp | 2025-10-07 | 180.43.103.52 |
| kodomosyokudo.hotstaff.co.jp | 2025-02-26 | 219.117.201.116 |
| pcr.hotstaff.co.jp | 2025-10-07 | 219.117.201.116 |
| adebis.hotstaff.co.jp | 2025-02-26 | 18.177.118.16 |