As a box code, 2525 is used for 5 post office box locations.
PO Boxes using 2525
| Suburb | Town | Province |
|---|---|---|
| Dube Section | Ikageng | North West |
| Ikageng | Potchefstroom | North West |
| Industria | Potchefstroom | North West |
| Lesedi | Potchefstroom | North West |
| Sarafina | Potchefstroom | North West |