| Postal Code information | |
|---|---|
| Place | Cát Bà |
| Post Code | 187305, 187306, 187307, 187308, 187309, 187311, 187312, 187313, 187314, 187315, 187316, 187317, 187318, 187319, 187431, 187432, 187433, 187434, 187435, 187436, 187437, 187438, 187440, 187441 |
| County | Cát Bà |
| State | Đồng Bằng Sông Hồng |
| Time zone | Asia/Ho_Chi_Minh |