As a box code, 6690 is used for 1 post office box location.
PO Boxes using 6690
| Suburb | Town | Province |
|---|---|---|
| Vanwyksdorp | Ladismith | Western Cape |
Postal code 6690
Ladismith, Western Cape
6690 is a PO Box code in Western Cape, South Africa, mainly serving Ladismith.