| Postal Code information | |
|---|---|
| Place | Cầu Diễn |
| Post Code | 129001, 129002, 129003, 129004, 129005, 129006, 129007, 129008, 129009, 129012, 129013, 129014, 129015, 129016, 129017, 129019, 129020, 129021, 129026 |
| County | Cầu Diễn |
| State | Đồng Bằng Sông Hồng |
| Time zone | Asia/Ho_Chi_Minh |