| Date | IP Address |
| 2016-12-16 | 72.246.40.17 (ClassC) |
| 2017-10-30 | 23.229.113.42 (ClassC) |
| 2024-10-02 | 104.16.78.72 (ClassC) |
| 2025-09-25 | 104.18.11.139 (ClassC) |
| 2026-01-11 | 104.18.10.139 (ClassC) |
| Date | Domain | IP |
| bc.ef.com.vn | 2024-10-02 | 18.161.6.129 |
| www.ef.com.vn | 2024-10-02 | 104.16.78.72 |