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Before You Call Back

Area code 319

Area code 319 serves Iowa, including Cedar Rapids, Iowa City and Waterloo (Central time). It has been in service since January 1, 1947.

Numbers starting with 319 drew 1,197 reports to the FTC from Aug 14, 2026 to Nov 11, 2026 and 400 complaints to the FCC since November 2023. The number on your screen can be faked, so a 319 number proves nothing about where a call came from.

Location
Iowa
Time zone
Central
In service since
January 1, 1947
Overlay
None: the only code for its area
Local calls
Dial 10 digitsArea code needed, even next door
Exchanges in use
565 of 792held by 86 carriers
Projected to run out
2Q 2055NANPA forecast 2026.2

Complaints about 319 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 319. These are counts of what people reported; the agencies do not verify them.

FTC reports, Aug 14, 2026 to Nov 11, 2026

1,197

FCC complaints since November 2023

400

Different 319 numbers reported

1,480

FCC complaints naming a 319 number, by month

November 2023 to October 2026. Source: FCC Consumer Complaints Data.

Show as a table
MonthComplaints
November 202316
December 20238
January 20247
February 20247
March 20246
April 20246
May 202411
June 20249
July 20249
August 202412
September 20249
October 20248
November 202412
December 202413
January 202516
February 202512
March 202515
April 20257
May 20257
June 202515
July 20257
August 202513
September 202515
October 20252
November 202514
December 20257
January 202612
February 202610
March 202617
April 20265
May 202613
June 202616
July 202613
August 20264
September 202613
October 202623

What people said 319 calls were about

Subjects picked in FTC reports, August 14, 2026 to November 11, 2026. 699 of 1,197 reports were robocalls.

Show as a table
SubjectReports
Other479
Reducing your debt (credit cards, mortgage, student loans)253
Dropped call or no message159
Medical and prescriptions99
Calls pretending to be government, businesses, or family and friends72
Warranties and protection plans34

Most reported 319 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 319

NANPA lists 137 rate centers for 319. 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.
  • Cedar Rapids110
  • Iowa City50
  • Waterloo47
  • Burlington19
  • Cedar Falls13
  • Fort Madison11
  • Mount Pleasant10
  • Washington10
  • Anamosa9
  • Keokuk9
  • Oelwein7
  • Independence6
  • Keosauqua6
  • North Liberty6
  • Vinton6
  • Waverly6
  • Brighton5
  • Columbus Junction5
  • Grundy Center5
  • Parkersburg5
  • Center Point4
  • Monticello4
  • Mount Vernon4
  • Williamsburg4
Show all 137 rate centers

Belle Plaine, Central City, Coggon, Denver, Ely, Fairfax, Hudson, Kalona, Marengo, Oxford, Reinbeck, Solon, Swisher, Tiffin, Wapello, Alburnett, Allison, Amana, Aplington, Argyle, Atkins, Aurora, Blairstown, Brandon, Danville, Denmark, Donnellson, Dunkerton, Dysart, Fairbank, Farmington, Grandview, Guernsey, Hazleton, Hills, Hillsboro, Houghton, Janesville, Jesup, Keystone, La Porte City, Lisbon, Lone Tree, Martelle, Mediapolis, Montrose, Morley, Morning Sun, Mount Union, New London, Newhall, North English, Norway, Olds, Olin, Oran, Packwood, Readlyn, Richland, Riverside, Rowley, Salem, Sharon Center, Shell Rock, Shellsburg, South English, Traer, Tripoli, Troy Mills, Walker, Wellman, West Branch, West Liberty, West Point, Winfield, Winthrop, Ainsworth, Birmingham, Bonaparte, Cantril, Clarksville, Clutier, Conesville, Conroy, Crawfordsville, Dodgeville, Elberon, Frederika, Garrison, Hartwick, Keswick, Kingston, Kinross, Ladora, Letts, Lockridge, Millersburg, Mount Auburn, Mount Sterling, Nichols, Oakville, Palo, Plainfield, Prairieburg, Primrose, Quasqueton, Springville, Stockport, Urbana, Van Horne, Victor, Wayland, West Chester.

Phone companies holding 319 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 86 carriers

NANPA central office code assignments, file of November 11, 2026.

Show as a table
Carrier (legal name)Exchanges
Qwest Corporation99
T-Mobile USA, Inc.43
Cellco Partnership dba Verizon Wireless - IA39
Windstream Iowa Communications, Inc.37
United States Cellular - IA35
Mcc Telephony LLC33
Onvoy, LLC - IA22
Windstream Iowa Communications, Inc. - North21

When today's 319 exchanges were assigned

Exchanges still assigned, by year of assignment. Exchanges returned since are not counted.

Show as a table
YearExchanges
200117
20026
20034
20045
20053
200624
20074
20088
20092
201013
20118
20126
20146
201515
20163
201710
201811
20198
202011
202115
202226
202317
202411
20257
20261

Check a 319 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