| Date | IP Address |
| 2015-03-12 | 54.231.225.106 (ClassC) |
| 2024-02-19 | 52.219.12.53 (ClassC) |
| 2024-04-08 | 52.219.16.177 (ClassC) |
| 2024-06-15 | 52.219.162.193 (ClassC) |
| 2024-06-24 | 52.219.150.77 (ClassC) |
| 2024-07-16 | 52.219.16.109 (ClassC) |
| 2024-08-20 | 52.219.199.133 (ClassC) |
| 2024-09-23 | 52.219.172.1 (ClassC) |
| 2024-10-04 | 52.219.151.57 (ClassC) |
| 2024-10-20 | 52.219.152.25 (ClassC) |
| 2024-12-24 | 52.219.200.5 (ClassC) |
| 2025-01-14 | 52.219.152.13 (ClassC) |
| Date | Domain | IP |
| stage.statics.pen-online.jp | 2024-08-20 | 52.219.16.233 |