| Date | IP Address |
| 2020-07-21 | 52.84.126.26 (ClassC) |
| 2024-02-14 | 54.248.75.215 (ClassC) |
| 2024-06-03 | 52.196.65.45 (ClassC) |
| 2024-06-18 | 18.179.115.164 (ClassC) |
| 2024-07-14 | 54.199.242.149 (ClassC) |
| 2025-01-22 | 52.69.17.150 (ClassC) |
| 2025-08-04 | 3.114.243.230 (ClassC) |
| 2025-08-12 | 35.73.87.161 (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 |