As a box code, 0221 is used for 11 post office box locations.
PO Boxes using 0221
| Suburb | Town | Province |
|---|---|---|
| Ga-Rankuwa | Ga-Rankuwa | Gauteng |
| Ga-Rankuwa Ext 20 | Ga-Rankuwa | Gauteng |
| Ga-Rankuwa Ext 23 | Ga-Rankuwa | Gauteng |
| Ga-Rankuwa Ext 24 | Ga-Rankuwa | Gauteng |
| Ga-Rankuwa Unit 1 | Ga-Rankuwa | Gauteng |
| Ga-Rankuwa Unit 16 | Ga-Rankuwa | Gauteng |
| Ga-Rankuwa Unit 17 | Ga-Rankuwa | Gauteng |
| Ga-Rankuwa Unit 8 | Ga-Rankuwa | Gauteng |
| Ga-Rankuwa Unit 9 | Ga-Rankuwa | Gauteng |
| Ga-Rankuwa Zone 14 | Ga-Rankuwa | Gauteng |
| Ga-Rankuwa Zone 7 | Ga-Rankuwa | Gauteng |