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The state of Iowa is covered by five area codes. The map to the right is clickable, click on any of the area codes on the map to go to the area code for that region or use the text links below. The map to the right is clickable, click on any of the area codes on the map to go to the area code for that region or use the text links below.
Numbering plan areas of Iowa with the red area indicating area code 712. Area code 712 is the telephone area code in the North American Numbering Plan (NANP) for the most western part of Iowa, including the cities of Spencer, Le Mars, Sioux City, Council Bluffs, Red Oak, Sheldon, Storm Lake, Carroll, Sac City, and Shenandoah.
Area code 319 is a telephone area code in the North American Numbering Plan (NANP) for the southeastern and east-central parts of the U.S. state of Iowa. Major cities in the numbering plan area (NPA) include Burlington , Cedar Falls , Cedar Rapids , Oelwein , Fort Madison , Iowa City , Keokuk , Mount Pleasant , and Waterloo .
1-NPA-555-01XX is used for fictional telephone numbers; 1-NPA-555-1212 is used for directory assistance; and other 1-NPA-555-XXXX numbers can be used for other 555 services; 556: not in use; available for personal communications services: 557
Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]
Area code 641 is a telephone area code in the North American Numbering Plan (NANP) for the central region of the U.S. state of Iowa. The numbering plan area (NPA) includes Mason City, and Ottumwa. The area code was created in a split of area code 515 on July 9, 2000, which was the first split in Iowa since the establishment of the area code ...
Area code 515 is a telephone area code in the North American Numbering Plan (NANP) for most of the north-central part of the U.S. state of Iowa. The numbering plan area includes Des Moines , Ames , Ankeny , Humboldt , Boone , Fort Dodge , Jefferson , Johnston , Urbandale , Algona and Indianola .
Area code 563 is a telephone area code for the east central and northeast corner of the state of Iowa, and includes most of the Iowa side of the Quad Cities. Area code 563 was split from area code 319 in 2001, becoming active on March 25, 2001, and finally becoming mandatory on December 2, 2001.