As a box code, 6604 is used for 1 post office box location.
PO Boxes using 6604
| Suburb | Town | Province |
|---|---|---|
| Harkerville | Plettenberg Bay | Western Cape |
Postal code 6604
Plettenberg Bay, Western Cape
6604 is a PO Box code in Western Cape, South Africa, mainly serving Plettenberg Bay.