| Date | IP Address |
| 2018-09-20 | 104.94.252.139 (ClassC) |
| 2019-03-07 | 23.43.95.65 (ClassC) |
| 2021-01-12 | 23.65.243.222 (ClassC) |
| 2023-08-26 | 104.86.235.65 (ClassC) |
| 2024-11-25 | 23.198.169.226 (ClassC) |
| 2025-04-21 | 23.195.231.172 (ClassC) |
| 2025-08-10 | 184.25.191.24 (ClassC) |
| 2025-09-06 | 23.6.103.104 (ClassC) |
| 2026-01-04 | 23.44.253.56 (ClassC) |
| Date | Domain | IP |
| www.sinfonia-iwakuni.com | 2023-08-26 | 104.86.235.65 |