| Date | IP Address |
| 2018-10-22 | 54.64.14.7 (ClassC) |
| 2019-10-11 | 52.199.132.126 (ClassC) |
| 2019-11-21 | 3.113.40.112 (ClassC) |
| 2020-01-06 | 52.199.148.195 (ClassC) |
| 2020-01-08 | 54.248.21.218 (ClassC) |
| 2020-02-03 | 52.199.216.210 (ClassC) |
| 2020-02-03 | 52.196.162.212 (ClassC) |
| 2020-04-09 | 52.198.40.39 (ClassC) |
| 2024-10-26 | 3.114.104.24 (ClassC) |
| 2024-11-19 | 18.177.61.156 (ClassC) |
| Date | Domain | IP |
| www.seiyuukai-yamazakiseikei.com | 2024-08-22 | 18.161.6.92 |