I have successfully used the autocomplete to get the alternative placeNames from zip codes in italy: give the country and zipcode and you get alternative placeNames.
However, admin2 codes and names (county, or in italian "provincia") are key to well-formed addresses-
I cannot figure out which other parameters to pass to the function to also get the admin2 Code and Name. Is this something I can manage by passing extra parameters to the JSON query or is there some return variable which holds admin2 info which I am overlooking?
If the objective is to have a form that can narrow down country/county/city from a zip code, is there some other way to do this via JSON or XML?