Area Code Basics Ever wondered how area codes are created or who assigns them? Find answers here.
Dialing Instructions Questions about dialing area codes? We've provided detailed instructions to assist you.
Types
of Area Code Changes
New area codes may be added by the geographic split method or the overlay method. Take a closer look at these methods and their overall effects.
State Information
To view state information, select a specific state from the drop-down menu below.
