| Date | IP Address |
| 2024-08-27 | 104.85.248.51 (ClassC) |
| 2024-08-29 | 2.21.67.33 (ClassC) |
| 2024-09-07 | 2.22.248.80 (ClassC) |
| 2026-01-19 | 103.28.136.99 (ClassC) |
| Date | Domain | IP |
| elink.ocb.com.vn | 2025-12-22 | 3.109.180.126 |
| mail.ocb.com.vn | 2025-09-27 | 103.28.137.12 |
| autodiscover.ocb.com.vn | 2026-01-18 | 103.28.136.12 |
| thietlapmatkhau.ocb.com.vn | 2025-11-20 | 103.28.136.81 |
| www.ocb.com.vn | 2024-11-24 | 3.1.159.59 |
| sharebox.ocb.com.vn | 2026-01-19 | 103.28.136.99 |