Prefix B3 contains 10 postcode records across 13 mapped localities in United Kingdom.
| Postal Code | Locality / District | Administrative Area | Coordinates |
|---|---|---|---|
| Birmingham | West Midlands · England | 52.4814, -1.8998 | |
| Bournville | West Midlands · England | 52.4167, -1.9167 | |
| Cotteridge | West Midlands · England | 52.4167, -1.9167 | |
| Stirchley | West Midlands · England | 52.4167, -1.9167 | |
| Longbridge | West Midlands · England | 52.4, -1.9833 | |
| Northfield | West Midlands · England | 52.4167, -1.9667 | |
| Frankley | Worcestershire · England | 52.4167, -2.0 | |
| Woodgate | West Midlands · England | 52.4485, -1.9947 | |
| Tile Cross | West Midlands · England | 52.4804, -1.7883 | |
| Birmingham | West Midlands · England | 52.4963, -1.7818 | |
| Birmingham | West Midlands · England | 52.5188, -1.7891 | |
| Castle Bromwich | West Midlands · England | 52.5019, -1.7826 | |
| Marston Green | West Midlands · England | 52.4685, -1.7482 | |
| King's Norton | West Midlands · England | 52.3999, -1.9349 | |
| West Heath | West Midlands · England | 52.3999, -1.9349 |
Based on 15 records, 10 postal code values and 13 mapped localities. Coordinate coverage is 100.0%.
| Postal code | Locality | Administrative path | Coordinates |
|---|---|---|---|
| B3 | Birmingham | England / West Midlands | 52.4814, -1.8998 |
| B30 | Bournville | England / West Midlands | 52.4167, -1.9167 |
| B30 | Cotteridge | England / West Midlands | 52.4167, -1.9167 |
| B30 | Stirchley | England / West Midlands | 52.4167, -1.9167 |
| B31 | Longbridge | England / West Midlands | 52.4, -1.9833 |
| B31 | Northfield | England / West Midlands | 52.4167, -1.9667 |