As a box code, 2158 is used for 18 post office box locations.
PO Boxes using 2158
| Suburb | Town | Province |
|---|---|---|
| Olivedale | Johannesburg | Gauteng |
| Olivedale Ext 1 | Johannesburg | Gauteng |
| Olivedale Ext 2 | Johannesburg | Gauteng |
| Olivedale Ext 3 | Johannesburg | Gauteng |
| Olivedale Ext 30 | Johannesburg | Gauteng |
| Olivedale Ext 7 | Johannesburg | Gauteng |
| Sharonlea | Johannesburg | Gauteng |
| Sharonlea Ext 17 | Johannesburg | Gauteng |
| Sharonlea Ext 27 | Johannesburg | Gauteng |
| Sonneglans | Randburg | Gauteng |
| Sonneglans Ext 11 | Randburg | Gauteng |
| Sonneglans Ext 14 | Randburg | Gauteng |
| Sonneglans Ext 16 | Randburg | Gauteng |
| Sonneglans Ext 17 | Randburg | Gauteng |
| Sonneglans Ext 19 | Randburg | Gauteng |
| Sonneglans Ext 23 | Randburg | Gauteng |
| Sonneglans Ext 24 | Randburg | Gauteng |
| Sonneglans Ext 4 | Randburg | Gauteng |