| Date | IP Address |
| 2019-02-09 | 69.65.3.210 (ClassC) |
| 2019-03-24 | 69.65.3.213 (ClassC) |
| 2024-05-11 | 104.21.2.221 (ClassC) |
| 2024-11-12 | 172.67.129.190 (ClassC) |
| 2024-12-28 | 104.21.32.1 (ClassC) |
| 2025-01-21 | 104.21.64.1 (ClassC) |
| 2025-10-05 | 172.67.170.61 (ClassC) |
| 2025-11-17 | 104.21.95.88 (ClassC) |
| Date | Domain | IP |
| bbs.arduino.tw | 2025-07-31 | 104.21.2.15 |
| buy.arduino.tw | 2024-07-22 | 104.21.2.221 |