I chanced upon a site which offers free information such as area codes and locations for phone numbers across the United States. One can also perform a phone search just like I did as I received a phone call from an unfamiliar U.S. phone number a couple of days ago. I simply entered the number into the search box provided in the site and the search results revealed that the caller was from Florida. Neat, huh? So if you need information on U.S. phone numbers, try using the services of Wiki Phone Numbers.