USA Zip/Area Code

This app will be helpfull to : -Find an USA zip code by city name. -Find a city in the USA from a zip code. -Find zip code by state, county. -Look Up a zip code. -Locate a city/zip code in the USA on google map. -Get the area code and timezone of a city in the USA. -Get th type of the zip code :STANDARD, PO BOX, UNIQUE,... -Be Informed of acceptable/unacceptable city name in USA . **This app Work offline : Dont need internet connection to find the zip code**