| Date | IP Address |
| 2021-12-19 | 23.64.114.83 (ClassC) |
| 2022-05-02 | 23.221.22.69 (ClassC) |
| 2025-04-18 | 23.41.4.17 (ClassC) |
| 2025-08-07 | 23.41.4.72 (ClassC) |
| Date | Domain | IP |
| ddwe03.ncsol.co.jp | 2024-10-03 | 23.203.134.238 |
| info.ncsol.co.jp | 2024-11-26 | 210.136.237.162 |
| castpro.ncsol.co.jp | 2025-04-21 | 23.41.4.86 |
| dev.castpro.ncsol.co.jp | 2024-10-03 | 23.41.4.72 |
| dev.ps.ncsol.co.jp | 2025-04-18 | 23.41.4.17 |
| cast.ncsol.co.jp | 2024-07-03 | 23.41.4.86 |
| dev.cast.ncsol.co.jp | 2024-10-03 | 23.41.4.86 |
| ncsev.ncsol.co.jp | 2024-06-10 | 13.231.35.61 |
| www.ncsol.co.jp | 2024-11-25 | 3.163.24.50 |