| Date | IP Address |
| 2020-10-15 | 54.92.27.227 (ClassC) |
| 2021-05-17 | 54.65.4.135 (ClassC) |
| 2022-11-03 | 3.115.102.220 (ClassC) |
| 2023-08-10 | 52.68.154.249 (ClassC) |
| 2023-12-07 | 18.181.57.220 (ClassC) |
| 2025-02-24 | 52.192.144.35 (ClassC) |
| 2025-10-16 | 13.158.251.143 (ClassC) |
| 2025-11-02 | 35.72.100.202 (ClassC) |
| 2025-11-12 | 54.248.81.211 (ClassC) |
| 2026-03-01 | 13.192.42.215 (ClassC) |
| Date | Domain | IP |
| www.reien-gunma.com | 2026-02-28 | 13.192.42.215 |