Area code 712

Area code 319Area code 563Area code 515Area code 641Area code 712Area code 605Area code 402Area code 660Area code 507Area code 608Area code 815Area code 309Area code 217
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 712 was one of the original three area codes for the state of Iowa established in 1947, and is the only one that still has its original boundaries.[citation needed] It is one of the few remaining original area codes (not counting those covering an entire state) that has never been split or overlaid. Despite the proliferation of cell phones and pagers (particularly in Sioux City and Council Bluffs), it is projected to stay that way until at least 2031.[1]

  1. ^ "2021-2 NRUF and NPA Exhaust Analysis" (PDF). nationalnanpa.com. October 2021. Retrieved April 11, 2023.