| Date | IP Address |
| 2022-02-23 | 13.112.111.255 (ClassC) |
| 2022-02-24 | 54.238.8.24 (ClassC) |
| 2022-06-28 | 54.65.203.9 (ClassC) |
| 2022-08-02 | 52.192.64.6 (ClassC) |
| 2025-07-13 | 54.150.59.83 (ClassC) |
| 2025-10-15 | 52.196.231.160 (ClassC) |
| 2025-11-04 | 57.181.239.54 (ClassC) |
| 2025-11-22 | 54.150.141.169 (ClassC) |
| Date | Domain | IP |
| m.c21-jm-chintai.co.jp | 2025-10-23 | 54.150.134.89 |
| www.c21-jm-chintai.co.jp | 2025-10-23 | 52.195.243.146 |