| Date | IP Address |
| 2018-05-28 | 13.33.126.250 (ClassC) |
| 2018-10-19 | 13.33.74.98 (ClassC) |
| 2018-10-19 | 13.33.74.39 (ClassC) |
| 2018-10-19 | 13.33.74.96 (ClassC) |
| 2018-11-06 | 13.32.254.254 (ClassC) |
| 2018-11-06 | 13.32.254.152 (ClassC) |
| 2018-11-27 | 52.84.141.164 (ClassC) |
| 2018-11-27 | 52.84.141.95 (ClassC) |
| 2019-04-06 | 13.33.140.203 (ClassC) |
| 2019-04-25 | 52.84.31.179 (ClassC) |
| 2019-06-25 | 54.230.35.10 (ClassC) |
| 2019-06-25 | 54.230.35.105 (ClassC) |
| 2019-07-29 | 13.226.38.38 (ClassC) |
| 2019-07-29 | 13.226.38.108 (ClassC) |
| 2019-11-05 | 13.225.212.52 (ClassC) |
| 2020-10-27 | 13.32.179.100 (ClassC) |
| 2020-10-27 | 13.32.179.72 (ClassC) |
| 2020-10-27 | 13.32.179.86 (ClassC) |
| 2021-06-04 | 13.226.29.91 (ClassC) |
| 2022-04-12 | 13.226.17.95 (ClassC) |
| 2024-12-18 | 3.163.189.106 (ClassC) |
| 2025-03-28 | 3.163.189.88 (ClassC) |
| 2025-06-26 | 3.163.24.41 (ClassC) |
| 2025-07-09 | 3.163.24.85 (ClassC) |
| 2025-10-17 | 3.163.24.65 (ClassC) |
| 2026-01-27 | 3.163.24.3 (ClassC) |
| Date | Domain | IP |
| www.houeikai.or.jp | 2025-01-15 | 3.163.189.106 |