| Date | IP Address |
| 2021-08-31 | 54.192.58.108 (ClassC) |
| 2021-08-31 | 54.192.58.83 (ClassC) |
| 2021-09-03 | 65.8.56.42 (ClassC) |
| 2025-03-20 | 3.170.103.3 (ClassC) |
| 2025-04-30 | 3.163.24.68 (ClassC) |
| 2025-06-14 | 3.163.24.31 (ClassC) |
| 2025-10-27 | 3.169.173.69 (ClassC) |
| 2025-11-01 | 3.169.173.56 (ClassC) |
| Date | Domain | IP |
| ja.nc-net.or.jp | 2025-06-05 | 54.150.172.134 |
| mori.nc-net.or.jp | 2024-10-13 | 18.176.95.137 |
| beacon.nc-net.or.jp | 2025-04-30 | 3.163.24.68 |
| www.nc-net.or.jp | 2023-11-01 | 54.150.126.223 |