A few weeks ago, we were trying to reach some relatives in the U.S. for my father-in-law's death anniversary. All of my husband's relatives and his family are now residing in America. Some in New Jersey, San Francisco and Georgia. Since not all can go online, we had to call them, one by one. And to be honest, the area codes a bit confusing. If not, second thoughts if you dialed the right one will bug your mind. Phone Number Hunter is a solution to every area code problem. They have the codes you will be needing for the biggest cities in the U.S. State by state, city by city.
Not only that, location information, geographic information, and population information, is also available for every active area code.