| Date | IP Address |
| 2017-05-16 | 52.84.56.41 (ClassC) |
| 2017-05-30 | 52.84.56.65 (ClassC) |
| 2017-11-27 | 13.32.67.7 (ClassC) |
| 2018-01-04 | 54.192.197.251 (ClassC) |
| 2018-01-05 | 13.33.252.129 (ClassC) |
| 2018-02-09 | 52.84.143.25 (ClassC) |
| 2018-09-20 | 52.222.222.90 (ClassC) |
| 2019-04-19 | 13.249.44.68 (ClassC) |
| 2019-06-09 | 13.32.123.250 (ClassC) |
| 2019-06-09 | 13.32.123.80 (ClassC) |
| 2019-06-09 | 13.32.123.163 (ClassC) |
| 2019-07-28 | 99.84.41.54 (ClassC) |
| 2019-07-31 | 13.225.212.37 (ClassC) |
| 2019-07-31 | 13.225.212.46 (ClassC) |
| 2020-12-13 | 143.204.217.33 (ClassC) |
| 2024-08-10 | 204.246.191.129 (ClassC) |
| 2024-08-19 | 204.246.191.115 (ClassC) |
| 2024-11-12 | 204.246.191.119 (ClassC) |
| 2024-12-20 | 18.238.217.24 (ClassC) |
| 2025-03-25 | 18.238.217.99 (ClassC) |
| 2025-04-28 | 204.246.191.59 (ClassC) |
| Date | Domain | IP |
| auth.kaikatsu.jp | 2024-03-06 | 18.161.6.125 |
| api.kaikatsu.jp | 2024-06-25 | 3.163.24.97 |
| portal.kaikatsu.jp | 2024-03-07 | 3.163.24.105 |
| info.kaikatsu.jp | 2024-12-24 | 99.84.66.99 |
| www.kaikatsu.jp | 2024-08-10 | 204.246.191.129 |