| Date | IP Address |
| 2022-03-31 | 65.9.66.96 (ClassC) |
| 2022-04-01 | 13.225.80.35 (ClassC) |
| 2022-04-06 | 99.86.94.42 (ClassC) |
| 2022-04-11 | 52.222.149.78 (ClassC) |
| 2022-04-22 | 52.84.174.2 (ClassC) |
| 2022-05-30 | 13.224.132.31 (ClassC) |
| 2024-02-15 | 99.84.238.150 (ClassC) |
| 2024-05-25 | 99.84.66.5 (ClassC) |
| 2024-07-08 | 204.246.191.92 (ClassC) |
| 2024-08-15 | 18.161.6.107 (ClassC) |
| 2024-08-18 | 18.172.170.47 (ClassC) |
| 2024-11-24 | 18.161.6.44 (ClassC) |
| 2024-11-29 | 204.246.191.31 (ClassC) |
| 2024-12-16 | 3.165.160.51 (ClassC) |
| 2025-03-26 | 204.246.191.122 (ClassC) |
| 2025-04-08 | 99.84.66.73 (ClassC) |
| 2025-04-13 | 204.246.191.54 (ClassC) |
| 2025-06-29 | 3.175.34.120 (ClassC) |
| 2025-08-03 | 3.175.34.14 (ClassC) |
| Date | Domain | IP |
| mail.marubun.co.jp | 2025-02-27 | 142.250.217.83 |
| www.marubun.co.jp | 2024-02-15 | 99.84.238.150 |