0021 is also the box code for 2 post office box locations.
PO Box locations with code 0021
| Suburb | Town | Province |
|---|---|---|
| Eersterus | Silverton | Gauteng |
| Eersterus Ext 2 | Silverton | Gauteng |
Areas using postal code 0021
Silverton, Gauteng
Postal code 0021 belongs to Silverton in Gauteng and works as a PO Box code.