As a box code, 5170 is used for 18 post office box locations.
Suburbs using 5170 as street code
| Suburb | Town | Province |
|---|---|---|
| Adkin's Post | Tsolo | Eastern Cape |
| Tsolo | Tsolo | Eastern Cape |
PO Boxes using 5170
| Suburb | Town | Province |
|---|---|---|
| Adkin's Post | Tsolo | Eastern Cape |
| Cingco | Tsolo | Eastern Cape |
| Gemfane | Tsolo | Eastern Cape |
| Inxu Drift | Tsolo | Eastern Cape |
| Jenca | Tsolo | Eastern Cape |
| Junction Ferry | Tsolo | Eastern Cape |
| Malepelepe | Tsolo | Eastern Cape |
| Muggleton's Post | Tsolo | Eastern Cape |
| Ncolosi | Tsolo | Eastern Cape |
| Ngqubusini | Tsolo | Eastern Cape |
| Ntywenka | Tsolo | Eastern Cape |
| Oakville | Tsolo | Eastern Cape |
| Rockeries | Tsolo | Eastern Cape |
| Siqungweni | Tsolo | Eastern Cape |
| Tikitiki | Tsolo | Eastern Cape |
| Tsitsa Bridge | Tsolo | Eastern Cape |
| Tsolo | Tsolo | Eastern Cape |
| Velihill | Tsolo | Eastern Cape |