| Date | IP Address |
| 2018-10-16 | 52.69.5.21 (ClassC) |
| 2019-10-05 | 54.65.44.217 (ClassC) |
| 2021-04-30 | 18.179.210.84 (ClassC) |
| 2022-06-07 | 35.75.169.108 (ClassC) |
| 2022-09-30 | 35.73.28.18 (ClassC) |
| 2022-12-22 | 52.193.21.250 (ClassC) |
| 2023-06-27 | 13.113.17.192 (ClassC) |
| 2023-12-21 | 54.248.145.11 (ClassC) |
| 2024-07-07 | 52.192.11.0 (ClassC) |
| 2024-07-09 | 18.182.165.192 (ClassC) |
| 2024-07-13 | 54.64.127.124 (ClassC) |
| 2024-09-14 | 18.177.178.156 (ClassC) |
| 2024-11-26 | 175.41.207.86 (ClassC) |
| 2025-02-01 | 52.68.79.21 (ClassC) |
| 2025-05-02 | 18.177.70.115 (ClassC) |
| 2025-05-09 | 54.248.186.117 (ClassC) |
| 2025-07-29 | 18.178.58.108 (ClassC) |
| 2025-08-05 | 52.69.61.216 (ClassC) |
| 2025-08-13 | 57.182.38.67 (ClassC) |
| 2025-08-22 | 18.177.70.22 (ClassC) |
| 2025-09-07 | 18.178.48.224 (ClassC) |
| 2026-01-06 | 13.159.31.168 (ClassC) |
| Date | Domain | IP |
| www.kotobuki.ed.jp | 2024-11-06 | 57.181.43.19 |