| Date | IP Address |
| 2021-04-25 | 52.219.17.35 (ClassC) |
| 2024-03-15 | 52.219.151.19 (ClassC) |
| 2024-07-04 | 52.219.136.112 (ClassC) |
| 2024-07-16 | 52.219.16.164 (ClassC) |
| 2025-04-25 | 52.219.151.63 (ClassC) |
| 2025-06-20 | 3.5.154.28 (ClassC) |
| 2025-07-12 | 52.219.162.179 (ClassC) |
| 2025-08-27 | 3.5.154.7 (ClassC) |
| Date | Domain | IP |
| kb.biz-notion.northsand.co.jp | 2025-03-10 | 3.208.139.0 |
| dev.northsand.co.jp | 2024-03-15 | 52.219.151.19 |
| www.northsand.co.jp | 2023-11-01 | 44.238.105.202 |