The country code is France +33 I believe that there is no city with the code 7 but I may be wrong.
its actually north central north carolina, think the raleigh, durham, chapel hill, area . 919 is the area code for eastern North Carolina. See the link below for the specific cities.
Milwaukee, WI
STRUMState:WI
It is unknown what the Postcode for Gotham City is.