Area code 712
Area code 712 serves Iowa, including Sioux City, Council Bluffs and Sergeant Bluff (Central time). It has been in service since January 1, 1947.
Numbers starting with 712 drew 1,100 reports to the FTC from Aug 14, 2026 to Nov 11, 2026 and 613 complaints to the FCC since November 2023. The number on your screen can be faked, so a 712 number proves nothing about where a call came from.
- Location
- IowaDes Moines-West Des Moines, IA Metropolitan Statistical Area and Omaha, NE-IA Metropolitan Statistical Area
- Time zone
- Central
- In service since
- January 1, 1947
- Overlay
- None: the only code for its area
- Local calls
- Dial 7 digits
- Exchanges in use
- 633 of 792held by 114 carriers
- Projected to run out
- 3Q 2040NANPA forecast 2026.2
Complaints about 712 numbers
FTC reports, Aug 14, 2026 to Nov 11, 2026
1,100
FCC complaints since November 2023
613
Different 712 numbers reported
1,629
FCC complaints naming a 712 number, by month
November 2023 to October 2026. Source: FCC Consumer Complaints Data.
Show as a table
| Month | Complaints |
|---|---|
| November 2023 | 14 |
| December 2023 | 19 |
| January 2024 | 15 |
| February 2024 | 12 |
| March 2024 | 10 |
| April 2024 | 7 |
| May 2024 | 21 |
| June 2024 | 12 |
| July 2024 | 21 |
| August 2024 | 22 |
| September 2024 | 16 |
| October 2024 | 13 |
| November 2024 | 15 |
| December 2024 | 15 |
| January 2025 | 17 |
| February 2025 | 25 |
| March 2025 | 23 |
| April 2025 | 40 |
| May 2025 | 41 |
| June 2025 | 18 |
| July 2025 | 10 |
| August 2025 | 11 |
| September 2025 | 22 |
| October 2025 | 3 |
| November 2025 | 18 |
| December 2025 | 17 |
| January 2026 | 15 |
| February 2026 | 17 |
| March 2026 | 23 |
| April 2026 | 17 |
| May 2026 | 8 |
| June 2026 | 14 |
| July 2026 | 12 |
| August 2026 | 10 |
| September 2026 | 14 |
| October 2026 | 18 |
What people said 712 calls were about
Subjects picked in FTC reports, August 14, 2026 to November 11, 2026. 815 of 1,100 reports were robocalls.
Show as a table
| Subject | Reports |
|---|---|
| Other | 404 |
| Reducing your debt (credit cards, mortgage, student loans) | 322 |
| Medical and prescriptions | 105 |
| Calls pretending to be government, businesses, or family and friends | 99 |
| Dropped call or no message | 58 |
| Warranties and protection plans | 17 |
Most reported 712 numbers
Numbers with at least five reports from three or more places in the last twelve months. Many of them are likely spoofed.
Places served by 712
- Sioux City73
- Council Bluffs29
- Sergeant Bluff13
- Spencer11
- Le Mars10
- Carroll9
- Harlan8
- Storm Lake8
- Atlantic7
- Denison7
- Red Oak7
- Cherokee6
- Emmetsburg6
- Onawa6
- Spirit Lake6
- Carter Lake5
- Clarinda5
- Estherville5
- Glenwood5
- Ida Grove5
- Lake Park5
- Mapleton5
- Orange City5
- Rock Valley5
Show all 244 rate centers
Rockwell City, Shenandoah, Hawarden, Lake View, Lidderdale, Matlock, Sheldon, Sibley, Sioux Center, Armstrong, Ashton, Audubon, Avoca, Battle Creek, Bedford, Beloit, Correctionville, Crescent, Danbury, Early, Glidden, Hamburg, Hartley, Havelock, Hospers, Hull, Laurens, Logan, Malvern, Mineola, Missouri Valley, Moville, North Hopkins, Paullina, Pierson, Primghar, Rock Rapids, Sanborn, Scranton, Sidney, Sioux Rapids, Sloan, Underwood, Wall Lake, Westphalia, Whiting, Woodbine, Akron, Albert City, Alta, Anthon, Arnolds Park, Boyden, Brunsville, Carson, Charter Oak, Coon Rapids, Cushing, Doon, Dow City, East Harrisburg, Emerson, Essex, Exira, George, Gravity, Griswold, Holstein, Hornick, Ireton, Kimballton, Kingsley, Kiron, Lake City, Larchwood, Lohrville, Lytton, Manning, Manson, Massena, Merrill, Midland, Milford, Minden, Nemaha, Neola, New Market, Newell, Oakland, Odebolt, Oto, Peterson, Pocahontas, Randolph, Sac City, Salix, Schaller, Shelby, Silver City, Struble, Tabor, Villisca, Walnut, Washta, Alton, Alvord, Anita, Arcadia, Archer, Arthur, Auburn, Aurelia, Ayrshire, Bayard, Bethesda, Blencoe, Braddyville, Brayton, Breda, Bronson, Castana, Cleghorn, Climbing Hill, Coin, College Springs, Cumberland, Curlew, Cylinder, Dedham, Defiance, Dickens, Dolliver, Dunlap, Earling, East Hudson, East Nebraska City, Elk Horn, Elliott, Everly, Farragut, Fonda, Galva, Gillett Grove, Graettinger, Grant, Granville, Halbur, Hancock, Harris, Henderson, Hinton, Imogene, Inwood, Irwin, Jacksonville, Kirkman, Lanesboro, Larrabee, Lawton, Lester, Lewis, Linn Grove, Little Rock, Little Sioux, Macedonia, Magnolia, Mallard, Manilla, Marathon, Marcus, Marne, Maurice, May City, Melvin, Meriden, Modale, Mondamin, Moorhead, Nodaway, Northboro, Ocheyedan, Pacific Junction, Palmer, Panama, Percival, Persia, Pisgah, Plover, Pomeroy, Portsmouth, Quimby, Ralston, Rembrandt, Remsen, Ricketts, Ringsted, Riverton, Rolfe, Royal, Ruthven, Schleswig, Smithland, Soldier, South Bigelow, South Hills, South Steen, South Valley Springs, Stanton, Superior, Sutherland, Templeton, Terril, Thurman, Treynor, Ute, Vail, Wallingford, Webb, Westside, Wiota.
Phone companies holding 712 exchanges
Exchanges held, top 8 of 114 carriers
NANPA central office code assignments, file of November 11, 2026.
Show as a table
| Carrier (legal name) | Exchanges |
|---|---|
| Cellco Partnership dba Verizon Wireless - IA | 68 |
| Qwest Corporation | 64 |
| Windstream Iowa Communications, Inc. - North | 48 |
| New Cingular Wireless PCS, LLC - IL | 43 |
| Onvoy, LLC - IA | 31 |
| Frontier Communications of Iowa, Inc. | 24 |
| T-Mobile USA, Inc. | 23 |
| Windstream Iowa Communications, Inc. | 20 |
When today's 712 exchanges were assigned
Exchanges still assigned, by year of assignment. Exchanges returned since are not counted.
Show as a table
| Year | Exchanges |
|---|---|
| 2001 | 19 |
| 2002 | 12 |
| 2003 | 13 |
| 2004 | 7 |
| 2005 | 6 |
| 2006 | 15 |
| 2007 | 8 |
| 2008 | 2 |
| 2009 | 4 |
| 2010 | 13 |
| 2011 | 2 |
| 2012 | 1 |
| 2013 | 6 |
| 2014 | 1 |
| 2015 | 7 |
| 2016 | 5 |
| 2017 | 2 |
| 2018 | 25 |
| 2019 | 25 |
| 2020 | 11 |
| 2021 | 22 |
| 2022 | 18 |
| 2023 | 9 |
| 2024 | 9 |
| 2025 | 12 |
| 2026 | 6 |
Check a 712 number
A check shows the carrier and rate center of the number's exchange and every FTC and FCC report about that exact number. Why the number on screen can be fake.
Other area codes in Iowa
NANPA area code database and central office code file of November 11, 2026; FCC complaints November 1, 2023 to November 11, 2026; FTC reports August 14, 2026 to November 11, 2026. How the data is used.
Official sources (7)ShowHide
- NPA Reports (NPA database, area code definitions, exhaust projections), North American Numbering Plan Administrator (NANPA) (NPA database file dated 11/11/2026; exhaust forecast 2026-2). Checked November 11, 2026.
- Central Office Code Assignment Records (all states, utilized codes), North American Numbering Plan Administrator (NANPA) (File updated 11/11/2026). Checked November 11, 2026.
- Thousands-Block Reports: NPA rate center report, all states, North American Numbering Plan Administrator (NANPA). Checked November 11, 2026.
- CO Codes/Thousands-Blocks, North American Numbering Plan Administrator (NANPA). Checked November 11, 2026.
- CGB - Consumer Complaints Data, Federal Communications Commission (Updated daily; licence: Public Domain U.S. Government). Checked November 11, 2026.
- Do Not Call (DNC) Reported Calls Data, Federal Trade Commission (Updated each weekday). Checked November 11, 2026.
- Caller ID Spoofing, Federal Communications Commission (Last updated November 13, 2024). Checked November 11, 2026.