| Date | IP Address |
| 2022-04-21 | 23.197.195.216 (ClassC) |
| 2024-10-12 | 23.54.19.147 (ClassC) |
| 2024-10-24 | 23.41.4.88 (ClassC) |
| 2025-08-28 | 23.41.4.72 (ClassC) |
| Date | Domain | IP |
| service.iyobank.co.jp | 2024-12-14 | 23.41.4.69 |
| auth.iyobank.co.jp | 2025-04-05 | 23.41.4.84 |
| dev-auth.iyobank.co.jp | 2025-07-24 | 23.41.4.88 |
| webtuti.iyobank.co.jp | 2025-03-06 | 128.168.131.215 |
| map.iyobank.co.jp | 2024-02-14 | 54.248.75.215 |
| service-test.iyobank.co.jp | 2024-10-12 | 23.54.19.147 |
| webtuti-test.iyobank.co.jp | 2025-03-06 | 162.133.138.6 |
| www.iyobank.co.jp | 2025-06-30 | 160.13.220.32 |