| Date | IP Address |
| 2018-07-24 | 52.84.33.93 (ClassC) |
| 2018-07-24 | 52.84.33.120 (ClassC) |
| 2018-07-24 | 52.84.33.57 (ClassC) |
| 2018-07-24 | 52.84.33.87 (ClassC) |
| 2019-06-26 | 52.84.134.43 (ClassC) |
| 2019-06-26 | 52.84.134.61 (ClassC) |
| 2019-06-26 | 52.84.134.13 (ClassC) |
| 2020-05-28 | 13.225.64.102 (ClassC) |
| 2024-09-30 | 204.246.191.55 (ClassC) |
| 2025-04-14 | 204.246.191.108 (ClassC) |
| Date | Domain | IP |
| release.backoffice.headclerk2.bng.jp | 2024-11-06 | 3.163.24.6 |
| debug.backoffice.headclerk2.bng.jp | 2024-09-30 | 204.246.191.55 |
| test.backoffice.headclerk2.bng.jp | 2024-02-27 | 99.84.66.69 |