List of Iowa area codes

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Numbering plan areas of Iowa and neighboring regions Area code IA.svg
Numbering plan areas of Iowa and neighboring regions

The state of Iowa is divided into five numbering plan areas (NPAs) in the North American Numbering Plan (NANP), with one area code assigned to each. None of the NPAs are expected to experience central office code exhaustion in the immediate future. It is one of the few states that has not implemented an overlay complex in any of its areas.

Area
code
YearParent
NPA
Numbering plan area
319 1947 Cedar Rapids, Waterloo, Iowa City, and Cedar Falls
515 1947 Des Moines, Ames, West Des Moines, Urbandale and Fort Dodge
712 1947 Sioux City, Council Bluffs
641 2000515 Mason City, Marshalltown, Ottumwa, Tama
563 2001319 Davenport, Dubuque, Bettendorf, Clinton, Muscatine

See also