Skip to content
Before You Call Back

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

Reports where the number on the consumer's caller ID (or, for the FCC, the number the caller asked them to call back) starts with 712. These are counts of what people reported; the agencies do not verify them.

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
MonthComplaints
November 202314
December 202319
January 202415
February 202412
March 202410
April 20247
May 202421
June 202412
July 202421
August 202422
September 202416
October 202413
November 202415
December 202415
January 202517
February 202525
March 202523
April 202540
May 202541
June 202518
July 202510
August 202511
September 202522
October 20253
November 202518
December 202517
January 202615
February 202617
March 202623
April 202617
May 20268
June 202614
July 202612
August 202610
September 202614
October 202618

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
SubjectReports
Other404
Reducing your debt (credit cards, mortgage, student loans)322
Medical and prescriptions105
Calls pretending to be government, businesses, or family and friends99
Dropped call or no message58
Warranties and protection plans17

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

NANPA lists 244 rate centers for 712. A rate center is the town or district a block of numbers is tied to for billing; sorted here by how many exchanges each holds.
  • 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

Each exchange (the three digits after the area code) is assigned to one carrier. 69% of these exchanges are pooled: their numbers are handed out in blocks of 1,000 to other carriers, so the holder below is not always the company serving a given number.

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 - IA68
Qwest Corporation64
Windstream Iowa Communications, Inc. - North48
New Cingular Wireless PCS, LLC - IL43
Onvoy, LLC - IA31
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
YearExchanges
200119
200212
200313
20047
20056
200615
20078
20082
20094
201013
20112
20121
20136
20141
20157
20165
20172
201825
201925
202011
202122
202218
20239
20249
202512
20266

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)Show