As a box code, 6503 is used for 2 post office box locations.
PO Boxes using 6503
| Suburb | Town | Province |
|---|---|---|
| Little Brak River | Mossel Bay | Western Cape |
| Rheebok | Mossel Bay | Western Cape |
Postal code 6503
Mossel Bay, Western Cape
6503 is a PO Box code in Western Cape, South Africa, mainly serving Mossel Bay.