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319 Area Code

Area code 319 serves Cedar Rapids, Iowa City, Waterloo, Marion, Cedar Falls and nearby communities in Iowa. It has been in service since January 1, 1947.

StateIowa
Time zoneCentral
Local time now…
Prefixes in use565
Projected to run out2048
Cedar RapidsIowa CityWaterlooMarionCedar FallsCoralvilleBurlingtonNorth LibertyWaverlyFort MadisonKeokukMount PleasantHiawathaWashingtonTiffinOrange CityIndependenceAnamosaOelweinVintonCedar RapidsIowa CityWaterlooBurlingtonWaverlyFort Madison
Cities and towns served by area code 319

Who issues 319 numbers

Mobile 24%VoIP and cable 12%Landline 65%

Share of the 565 prefixes (the three digits after 319) assigned to each type of carrier. Classification by carrier name, approximate.

CarrierPrefixes
Lumen (Qwest)99
Windstream65
UScellular39
T-Mobile39
Verizon Wireless39
Mcc Telephony33
Onvoy (Sinch)29
Ton80 Communications17

Cities and towns in area code 319

CityPopulationOther area codes
Cedar Rapids137,935
Iowa City76,229
Waterloo66,919
Marion42,732
Cedar Falls41,240
Coralville23,960
Burlington23,336
North Liberty21,976
Waverly10,561
Fort Madison9,935
Keokuk9,510
Mount Pleasant8,500
Hiawatha7,432
Washington7,261
Tiffin7,156
Orange City6,468712
Independence6,312
Anamosa5,901
Oelwein5,757
Vinton5,004

Got a call from 319?

A 319 number was originally issued in Iowa, but that does not prove the caller is there. 12% of 319 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 565 prefixes in area code 319

Format: (319) 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 319

Where is area code 319?
Area code 319 is in Iowa. It covers Cedar Rapids, Iowa City, Waterloo, Marion, Cedar Falls, Coralville and 14 more cities and towns.
What time zone is area code 319?
Area code 319 is in the Central time zone.
Is 319 a toll-free number?
No. 319 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 319 run out of numbers?
NANPA's latest forecast projects area code 319 to exhaust in the first quarter of 2048. Before that happens, a new area code is usually added as an overlay; existing numbers keep their code.

Other area codes in Iowa