As a box code, 0017 is used for 14 post office box locations.
PO Boxes using 0017
| Suburb | Town | Province |
|---|---|---|
| Doornpark | Doornpoort | Gauteng |
| Doornpoort Ext 1 | Doornpoort | Gauteng |
| Doornpoort Ext 29 | Doornpoort | Gauteng |
| Doornpoort Ext 30 | Doornpoort | Gauteng |
| Doornpoort Ext 31 | Doornpoort | Gauteng |
| Doornpoort Ext 32 | Doornpoort | Gauteng |
| Doornpoort Ext 33 | Doornpoort | Gauteng |
| Doornpoort Ext 34 | Doornpoort | Gauteng |
| Doornpoort Ext 4 | Doornpoort | Gauteng |
| Doornpoort Ext 40 | Doornpoort | Gauteng |
| Doornpoort Ext 41 | Doornpoort | Gauteng |
| Doornpoort Ext 6 | Doornpoort | Gauteng |
| Doornpoort | Pretoria | Gauteng |
| Doornpoort Ext 2 | Pretoria | Gauteng |