30457 is the Postal Code/PLZ Code for Hannover in the Germany State of Lower Saxony and the District of Landkreis Region Hannover.
| Postal Code | 30457 |
| Postal Code Name | Hannover |
| State | Lower Saxony |
| District | Landkreis Region Hannover |
| Timezone | Central European Summer Time (CEST) |
| Adjacent Postal Codes | 30453 30459 30952 30966 |