Area deCoder is an easy to use Firefox add-on that allows you to convert North American telephone area codes to localities.
Simply click on the telephone icon in the add-on bar to expand/minimize. In expanded mode, type the 3-digit area code in the smaller box, and press [Enter] to see its locality in the larger box.
The Area deCoder addon is cross-platform and It works on Mac OS X, Windows and Linux.
· Firefox 1.5 and later
What's New in This Release: [ read full changelog ]
· Updated code-locality data (as of 12/7/2012)