As a box code, 1903 is used for 1 post office box location.
PO Boxes using 1903
| Suburb | Town | Province |
|---|---|---|
| Henbyl | Vanderbijlpark | Gauteng |
Postal code 1903
Vanderbijlpark, Gauteng
1903 is a PO Box code in Gauteng, South Africa, mainly serving Vanderbijlpark.