| Date | IP Address |
| 2016-11-26 | 52.84.66.193 (ClassC) |
| 2017-03-05 | 52.84.64.82 (ClassC) |
| 2017-09-12 | 13.33.164.107 (ClassC) |
| 2018-02-16 | 13.33.164.207 (ClassC) |
| 2018-04-20 | 13.33.164.30 (ClassC) |
| 2020-09-07 | 13.249.93.60 (ClassC) |
| 2020-09-07 | 13.249.93.90 (ClassC) |
| 2020-10-31 | 52.85.224.127 (ClassC) |
| 2020-10-31 | 52.85.224.49 (ClassC) |
| 2020-10-31 | 52.85.224.91 (ClassC) |
| 2021-05-10 | 65.8.227.9 (ClassC) |
| 2021-10-17 | 54.192.131.9 (ClassC) |
| 2021-10-17 | 54.192.131.78 (ClassC) |
| 2024-09-23 | 99.84.66.127 (ClassC) |
| 2024-11-01 | 18.238.238.22 (ClassC) |
| 2024-12-30 | 99.84.66.109 (ClassC) |
| 2025-02-05 | 18.238.238.3 (ClassC) |
| 2025-03-06 | 18.238.238.88 (ClassC) |
| 2025-04-05 | 99.84.66.72 (ClassC) |
| Date | Domain | IP |
| www.c-forum.co.jp | 2024-02-28 | 99.84.66.72 |