| Date | IP Address |
| 2025-05-10 | 52.68.147.242 (ClassC) |
| 2026-01-08 | 57.180.189.132 (ClassC) |
| 2026-02-26 | 54.199.61.86 (ClassC) |
| Date | Domain | IP |
| img.mail.stu48.com | 2021-07-30 | 204.246.191.22 |
| sp.stu48.com | 2025-08-18 | 18.176.24.236 |
| entry.stu48.com | 2026-01-08 | 57.180.189.132 |