| Date | IP Address |
| 2018-11-17 | 143.204.31.112 (ClassC) |
| 2018-11-17 | 143.204.31.148 (ClassC) |
| 2018-11-17 | 143.204.31.172 (ClassC) |
| 2023-08-27 | 18.161.6.125 (ClassC) |
| 2023-11-01 | 18.161.6.10 (ClassC) |
| 2025-04-04 | 76.76.21.21 (ClassC) |
| Date | Domain | IP |
| www.utadahikaru.jp | 2023-07-15 | 18.161.6.46 |