I need this :
Is possible to have the postal code system too ?
postal code (optional): The postal code range that a shipping rate applies to, e.g., in the US, a ZIP code, a ZIP code prefix range using * wildcard, a range of ZIP codes between two ZIP Codes, or two ZIP code prefixes of equal length. Examples: 94114, 94*, 94002-95460, 94*-95*. Currently supported for the US and Australia.