| Date | IP Address |
| 2017-08-23 | 52.68.249.53 (ClassC) |
| 2017-09-05 | 54.65.139.238 (ClassC) |
| 2021-02-03 | 18.179.240.236 (ClassC) |
| 2022-12-20 | 54.178.250.54 (ClassC) |
| 2024-10-16 | 52.196.235.225 (ClassC) |
| 2025-01-19 | 54.64.235.239 (ClassC) |
| 2025-02-13 | 13.112.178.164 (ClassC) |
| 2025-03-10 | 3.113.50.101 (ClassC) |
| 2025-05-17 | 52.68.147.242 (ClassC) |
| 2025-08-18 | 18.176.24.236 (ClassC) |
| 2025-08-23 | 52.197.140.247 (ClassC) |
| 2025-09-13 | 18.178.90.52 (ClassC) |
| 2026-01-25 | 3.113.195.231 (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 |