Area codes are those numerical prefixes that make sure your phone calls get routed to the right geographic location. Think of them as the postal codes of telecommunications.
Iowa currently uses five area codes to cover the whole state: 319, 515, 563, 641, and 712. Each one represents a specific region. The Federal Communications Commission (FCC) manages the phone numbering plan through the North American Numbering Plan Administrator (NANPA), while the Iowa Utilities Board (IUB) handles implementation and regulation within Iowa.