| Date | IP Address |
| 2024-09-01 | 3.165.39.88 (ClassC) |
| 2024-09-10 | 13.227.62.98 (ClassC) |
| 2025-01-19 | 3.165.39.70 (ClassC) |
| 2025-04-29 | 3.165.39.127 (ClassC) |
| 2025-10-31 | 3.165.39.65 (ClassC) |
| 2026-02-24 | 18.65.185.21 (ClassC) |
| 2026-03-02 | 18.65.185.36 (ClassC) |
| Date | Domain | IP |
| www.nagaoka-hanabi.com | 2024-07-16 | 18.65.185.34 |