319 Area CodeCedar Rapids, IA
Area code 319 covers Cedar Rapids and nearby communities in Iowa, in the Central Time (CT) zone, home to about 664,000 people across 175 cities. It overlays 563, so the same region uses both and every local call needs all ten digits.
Overview
Where is area code 319?
Area code 319 serves part of Cedar Rapids, IA and the surrounding areas. It has a single overlay (563) that serves the same area.
Overview of the 319 Area Code
What is the 319 area code?
The 319 area code serves Cedar Rapids, Iowa, alongside other established area codes. When you see a 319 number, it indicates a local number within this geographic area.
Why was area code 319 created?
The 319 area code was introduced as an overlay to add numbers in Cedar Rapids once the existing area code 563 began to run out of available prefixes. It added a new supply of numbers without requiring current residents to change their existing digits.
Geographic Coverage of the 319 Area Code
The 319 area code serves Cedar Rapids and surrounding areas in Iowa. It operates within the Central Time (CT) time zone. It complements the coverage of area code 563. This area code covers several key cities, including:
- Cedar Rapids
- Iowa City
- Waterloo
- Marion
- Cedar Falls
- Coralville
Got a call from a 319 number? It came from Cedar Rapids, IA. Since 319 overlays with 563, every local call in the region needs all ten digits to land on the right line. Inside 319, Cedar Rapids holds about 21% of the population; the rest is split across 174 smaller cities.
Cedar Rapids Area Codes Overview
Cedar Rapids is served by multiple area codes, reflecting its telecommunications needs. The 319 area code operates alongside 563. Here are the area codes serving this region:
The introduction of the 319 area code helped prevent number exhaustion, ensuring a continuous supply of phone numbers across the geographic area.
What cities does area code 319 cover?
| City | State | Population | % of Area Code | % of City |
|---|---|---|---|---|
| Cedar Rapids | IA | 137,904 | 1% | 100% |
| Iowa City | IA | 76,710 | 0% | 100% |
| Waterloo | IA | 67,477 | 1% | 100% |
| Marion | IA | 42,542 | 0% | 100% |
| Cedar Falls | IA | 41,417 | 0% | 100% |
| Coralville | IA | 23,959 | 0% | 100% |
| Burlington | IA | 23,637 | 0% | 100% |
| North Liberty | IA | 21,904 | 0% | 100% |
| Waverly | IA | 10,576 | 0% | 100% |
| Fort Madison | IA | 9,983 | 0% | 100% |
* Sources: Population – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). Area code assignments – NANPA CO Code data. See our data methodology.
Has area code 319 been reported for unwanted calls?
Yes – 416 unwanted-call complaints were reported to the FTC for numbers showing a 319 area code (May 29 – Jul 2, 2026).
- 62% robocalls
- ↑ 9% vs prior period
Most-reported subjects
- Other35%147
- Reducing your debt (credit cards, mortgage, student loans)28%115
- Dropped call or no message9%36
* Caller ID is easily spoofed, so these figures reflect the number shown on caller ID, not the caller's true location – an area code alone never identifies a caller. The FTC does not verify the facts in these complaints. Source: FTC Do Not Call (DNC) Reported Calls Data, retrieved 2026-07-05.
Which prefixes and exchanges belong to area code 319?
53% assigned to a telco
- 77% Landline
- 23% Wireless
- 0% Unknown
| Prefix | Usage | Carrier |
|---|---|---|
| (319)200- | Landline | Imon Communications |
| (319)201- | Wireless | United States Cellular |
| (319)202- | Wireless | T-Mobile Usa |
| (319)203- | Landline | Mcc Telephony Of Iowa |
| (319)204- | Landline | Farmers And Merchants Mutual Telephone Co |
| (319)205- | Landline | Centurylink Communications |
| (319)206- | Landline | Onvoy Spectrum |
| (319)207- | Landline | Level 3 Communications |
| (319)208- | Landline | Mcleodusa Telecommunication Services |
| (319)209- | Wireless | T-Mobile Usa |
Frequently Asked Questions about the 319 Area Code
Who called me from a 319 number?
A 319 number is assigned to Cedar Rapids, Iowa, so a call may come from there. But caller ID is easy to fake, and scammers often spoof a local 319 code to look nearby, so a 319 number doesn't prove the caller is local. Recently, 416 unwanted-call complaints were reported to the FTC for numbers showing the 319 code (62% flagged as robocalls). If you don't recognize the number, let it go to voicemail; a real caller will leave a message.
Is 319 a scam area code?
No area code is a scam on its own. 319 is a normal, officially assigned code for Cedar Rapids, Iowa. Spam callers spoof local codes to raise the odds you answer, so 319 on your caller ID says nothing about who is really calling. Recently, 416 unwanted-call complaints were reported to the FTC for numbers showing the 319 code (62% flagged as robocalls). Judge the call itself, not the area code.
Why do I keep getting calls from the 319 area code?
Repeated calls from different 319 numbers are usually spoofing: a robocaller rotates through 319 numbers so each call looks local and slips past simple blocks. Recently, 416 unwanted-call complaints were reported to the FTC for numbers showing the 319 code (62% flagged as robocalls). Blocking one number rarely helps; voicemail screening, your carrier spam filter, and the Do Not Call Registry work better.
Should I answer an unknown 319 number?
If you aren't expecting a 319 call, let it ring to voicemail. Legitimate callers leave a message, most robocallers hang up when no one picks up, and answering can mark your number as active and bring more calls.
How do I block calls from the 319 area code?
Block a single 319 number from your recent-calls list (iPhone: tap the number, then Block this Caller; Android: tap the number, then Block or report spam). To cut the volume, turn on Silence Unknown Callers on iPhone or spam protection on Android, enable spam filtering from your carrier, and register at DoNotCall.gov. Blocking the entire 319 code also stops legitimate local calls, so use it only as a last resort.
Where is area code 319?
Area code 319 covers Cedar Rapids and the surrounding area in Iowa, spanning 175 cities with about 663,531 residents. It shares its area with overlay code 563.
Is 319 a real area code?
Yes. 319 is an active code in the North American Numbering Plan, assigned by NANPA and in service for Cedar Rapids, Iowa. A real code can still show up on spoofed spam calls, so treat unknown 319 calls with normal caution.
What timezone is the 319 area code in?
The 319 area code is in the Central Time (CT). Because a number can be kept when someone moves or switches to VoIP, a specific 319 caller may not be in that zone.
How do I call a 319 number from abroad?
From outside the US, dial your country's exit code, then 1 (the US country code), then 319 and the seven-digit number. From a mobile phone you can usually just enter +1 319 followed by the number and let the phone add the exit code for you.