| Information | |
|---|---|
| Name | Khu 4a |
| Postal Code | 202509, 202510, 202511, 202512, 202513, 202514, 202515, 202516, 202567, 202568, 202569, 202570, 202571, 202572, 202573, 202574, 202575, 202576, 202577, 202578, 202579 |
| Wards | Bãi Cháy |
| Provincial cities | Hạ Long |
| Provinces | Quảng Ninh |
| Regions | Đông Bắc |
| Place Type | town | Language | VI | HASC |
| Daylight Saving Time | NOT APPLICABLE |
| Local Date |
|
| Local Time |
|