| Date | IP Address |
| 2018-05-23 | 13.33.35.167 (ClassC) |
| 2018-05-23 | 13.33.35.45 (ClassC) |
| 2021-02-03 | 65.9.83.25 (ClassC) |
| 2021-02-03 | 65.9.83.16 (ClassC) |
| 2021-08-05 | 13.226.29.21 (ClassC) |
| 2021-08-05 | 13.226.29.85 (ClassC) |
| 2024-10-05 | 204.246.191.129 (ClassC) |
| 2025-01-05 | 3.163.165.88 (ClassC) |
| 2025-09-04 | 99.84.66.68 (ClassC) |
| 2025-12-23 | 3.169.173.50 (ClassC) |
| 2026-01-20 | 3.169.173.88 (ClassC) |
| Date | Domain | IP |
| blog.heptagon.co.jp | 2024-07-11 | 52.219.151.63 |
| www.heptagon.co.jp | 2024-10-05 | 204.246.191.129 |