| Date | IP Address |
| 2017-07-04 | 131.103.136.106 (ClassC) |
| 2017-07-21 | 23.45.182.48 (ClassC) |
| 2025-11-13 | 199.60.103.30 (ClassC) |
| 2025-11-19 | 199.60.103.226 (ClassC) |
| Date | Domain | IP |
| imdl2.obc.co.jp | 2024-07-19 | 99.84.66.47 |
| imdl.obc.co.jp | 2014-10-27 | 103.4.201.8 |
| www.obc.co.jp | 2025-11-13 | 199.60.103.30 |