4170 as a street code
4170 as a PO Box code
| Suburb | Area | Street | PO Box |
|---|---|---|---|
| Clansthal | Umkomaas | – | 4170 |
| Craigieburn | Umkomaas | 4170 | 4170 |
| Danganya | Umkomaas | – | 4170 |
| Danganya Area 6 | Umkomaas | 4170 | 4170 |
| Ilfracombe | Umkomaas | – | 4170 |
| Illfracombe | Umkomaas | – | 4170 |
| Kwamthathelwa | Umkomaas | – | 4170 |
| Magabheni | Umkomaas | – | 4170 |
| New Haven | Umkomaas | 4170 | 4170 |
| Saiccor Village | Umkomaas | 4170 | 4170 |
| Umkomaas | Umkomaas | 4170 | 4170 |
| Widenham | Umkomaas | 4170 | 4170 |
| Willowglen | Umkomaas | – | 4170 |