| Date | IP Address |
| 2019-03-11 | 173.222.111.3 (ClassC) |
| 2022-10-17 | 35.72.62.39 (ClassC) |
| 2023-01-11 | 54.199.147.146 (ClassC) |
| 2024-09-04 | 18.161.6.28 (ClassC) |
| 2025-01-18 | 18.238.217.35 (ClassC) |
| 2025-02-23 | 18.161.6.91 (ClassC) |
| 2025-02-28 | 18.161.6.62 (ClassC) |
| 2025-12-29 | 3.169.173.4 (ClassC) |
| 2026-02-17 | 18.161.6.31 (ClassC) |
| Date | Domain | IP |
| test-notification.rtn.ploom.jp | 2024-05-08 | 54.65.188.63 |
| www.ploom.jp | 2024-09-04 | 18.161.6.28 |