| Date | IP Address |
| 2021-02-27 | 8.45.52.221 (ClassC) |
| 2021-02-27 | 8.45.52.228 (ClassC) |
| 2024-09-02 | 8.45.52.198 (ClassC) |
| 2024-11-12 | 8.45.52.205 (ClassC) |
| 2025-05-10 | 8.45.52.204 (ClassC) |
| 2025-05-17 | 8.45.52.229 (ClassC) |
| 2025-07-11 | 163.181.60.222 (ClassC) |
| 2025-07-25 | 163.181.60.221 (ClassC) |
| 2025-10-17 | 163.181.60.220 (ClassC) |
| Date | Domain | IP |
| ad.2nd.test.lf.feishu-pre.cn | 2024-09-04 | 8.45.52.221 |
| 1.tfe.test.lf.feishu-pre.cn | 2024-09-02 | 8.45.52.198 |