Area code 712

{{Short description|Telephone area code for western Iowa, United States}}

{{Use mdy dates|date=April 2023}}

{{Iowa area codes image map|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. It is one of the few remaining original area codes nationwide (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.{{cite web

|url=https://nationalnanpa.com/reports/October%202021%20NPA%20Exhaust%20Analysis.pdf|title= 2021-2 NRUF and NPA Exhaust Analysis

|website=nationalnanpa.com|access-date=11 April 2023|date=October 2021}}