| Date | IP Address |
| 2020-08-26 | 23.197.195.216 (ClassC) |
| 2020-12-10 | 184.30.42.179 (ClassC) |
| 2021-04-07 | 172.232.13.49 (ClassC) |
| 2024-09-20 | 23.41.4.72 (ClassC) |
| 2025-01-07 | 23.41.4.88 (ClassC) |
| Date | Domain | IP |
| service.iyobank.co.jp | 2024-12-14 | 23.41.4.69 |
| auth.iyobank.co.jp | 2024-09-20 | 23.41.4.84 |
| dev-auth.iyobank.co.jp | 2024-09-20 | 23.41.4.72 |
| map.iyobank.co.jp | 2024-02-14 | 54.248.75.215 |
| service-test.iyobank.co.jp | 2024-10-12 | 23.54.19.147 |
| www.iyobank.co.jp | 2025-01-06 | 160.13.220.32 |