| Date | IP Address |
| 2023-10-22 | 54.249.197.151 (ClassC) |
| 2023-10-22 | 35.74.6.131 (ClassC) |
| 2025-09-30 | 35.73.220.251 (ClassC) |
| 2025-12-23 | 13.114.234.185 (ClassC) |
| 2026-02-09 | 3.114.249.69 (ClassC) |
| 2026-02-28 | 43.206.44.114 (ClassC) |
| Date | Domain | IP |
| m.nitto21.co.jp | 2026-02-06 | 3.114.249.69 |
| www.nitto21.co.jp | 2025-09-30 | 35.73.220.251 |