| Date | IP Address |
| 2023-08-27 | 54.251.235.145 (ClassC) |
| 2024-08-04 | 13.213.86.190 (ClassC) |
| 2024-08-27 | 13.213.194.233 (ClassC) |
| 2024-10-17 | 13.250.218.52 (ClassC) |
| 2024-11-24 | 3.1.191.35 (ClassC) |
| 2024-12-17 | 52.76.149.193 (ClassC) |
| 2025-01-07 | 52.221.66.125 (ClassC) |
| 2025-01-23 | 18.140.122.76 (ClassC) |
| 2025-02-08 | 18.136.185.247 (ClassC) |
| 2025-02-22 | 18.136.165.165 (ClassC) |
| 2025-03-11 | 18.141.90.157 (ClassC) |
| 2025-05-22 | 52.220.179.120 (ClassC) |
| 2025-08-22 | 13.250.197.147 (ClassC) |
| 2026-01-10 | 52.76.111.251 (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 | 2025-09-29 | 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 |