As a box code, 4147 is used for 11 post office box locations.
PO Boxes using 4147
| Suburb | Town | Province |
|---|---|---|
| Savannah | Chatsworth | KwaZulu-Natal |
| Savannah Park | Chatsworth | KwaZulu-Natal |
| Chiltern Heights | Malvern | KwaZulu-Natal |
| Jura Street | Malvern | KwaZulu-Natal |
| Queensmead | Malvern | KwaZulu-Natal |
| St James | Malvern | KwaZulu-Natal |
| The Oaks | Malvern | KwaZulu-Natal |
| Nirvana Hills | Northdene | KwaZulu-Natal |
| Mulberry Park | Pinetown | KwaZulu-Natal |
| Glendale Gardens | Queensburgh | KwaZulu-Natal |
| Queensmead Industrial Area | Queensburgh | KwaZulu-Natal |