Home › Iowa › 712

712 Area Code

Area code 712 serves Sioux City, Council Bluffs, Storm Lake, Spencer, Le Mars and nearby communities in Iowa. It has been in service since January 1, 1947.

StateIowa
Time zoneCentral
Local time now…
Prefixes in use633
Projected to run out2039
Sioux CityCouncil BluffsStorm LakeSpencerLe MarsCarrollSioux CenterDenisonAtlanticOrange CityEsthervilleSheldonSpirit LakeRed OakSergeant BluffGlenwoodClarindaCherokeeSioux CityCouncil BluffsStorm LakeSpencerCarrollAtlantic
Cities and towns served by area code 712

Who issues 712 numbers

Mobile 24%VoIP and cable 10%Landline 66%

Share of the 633 prefixes (the three digits after 712) assigned to each type of carrier. Classification by carrier name, approximate.

CarrierPrefixes
Windstream83
Verizon Wireless68
Lumen (Qwest)64
AT&T Mobility43
Onvoy (Sinch)33
Frontier26
UScellular20
T-Mobile17

Cities and towns in area code 712

CityPopulationOther area codes
Sioux City86,356
Council Bluffs62,680
Storm Lake11,590
Spencer11,218
Le Mars10,760
Carroll10,085
Sioux Center8,864
Denison8,214
Atlantic6,676
Orange City6,468319
Estherville5,807
Sheldon5,575
Spirit Lake5,525
Red Oak5,388
Sergeant Bluff5,324
Glenwood5,287
Clarinda5,273
Cherokee5,122

Got a call from 712?

A 712 number was originally issued in Iowa, but that does not prove the caller is there. 10% of 712 prefixes belong to VoIP and cable providers, whose numbers can be bought online and used from anywhere. Caller ID can also be spoofed, so treat urgent requests for money, codes or passwords from any area code with suspicion, and call back on a number you already know.

All 633 prefixes in area code 712

Format: (712) XXX-YYYY. Carrier is the company the block was originally assigned to; numbers may since have been ported to another carrier.

Questions about area code 712

Where is area code 712?
Area code 712 is in Iowa. It covers Sioux City, Council Bluffs, Storm Lake, Spencer, Le Mars, Carroll and 12 more cities and towns.
What time zone is area code 712?
Area code 712 is in the Central time zone.
Is 712 a toll-free number?
No. 712 is a geographic area code in Iowa. Toll-free numbers in the US start with 800, 833, 844, 855, 866, 877 or 888.
Will area code 712 run out of numbers?
NANPA's latest forecast projects area code 712 to exhaust in the second quarter of 2039. Before that happens, a new area code is usually added as an overlay; existing numbers keep their code.

Other area codes in Iowa