Quick answer
Iowa has 5 active geographic area codes covering Des Moines, Cedar Rapids, Davenport. The most-recognized codes are 515, 319, 712, serving Des Moines and the Central Iowa region.
- Total codes
- 5
- Top metro
- Des Moines
- Time zone
- CT
- Largest code
- 515 (Des Moines)
- NXX prefixes in use
- 2,745
- Most saturated
- 712 (~80%)
Area codes in Iowa
Iowa is served by 5 active geographic area codes in the North American Numbering Plan. These codes were assigned between 1947 and 2001 as population and call demand grew across the state.
Across Iowa's 5 area codes, our data counts 2,745 assigned central-office (NXX) prefixes in service. The most heavily loaded is 712 (Sioux City), with about 80% of its ~792 usable prefixes assigned. See the full NXX prefix allocation analysis across US area codes. (Prefix data: localcallingguide.com / NANPA, 2026.)
| Code | Primary City | Region | Established | Overlay Codes | Population |
|---|---|---|---|---|---|
| 319 | Cedar Rapids | Eastern Iowa | 1947 | — | 700,000 |
| 515 | Des Moines | Central Iowa | 1947 | — | 800,000 |
| 563 | Davenport | Southeastern Iowa | 2001 | — | 500,000 |
| 641 | Mason City | South-Central Iowa | 2001 | — | 400,000 |
| 712 | Sioux City | Western Iowa | 1947 | — | 500,000 |
Time zones in Iowa
All area codes in Iowa fall in the CT time zone.
- CT — area codes: 319, 515, 563, 641, 712
Top metros and their area codes
Below are the primary cities in Iowa and the area codes that serve each metro. Cities with multiple codes share geography due to overlay assignments added as demand grew.
Iowa area code coverage by region
This regional breakdown maps each Iowa area code to the part of the state it serves. Iowa's codes split across 5 regions — pick the code that matches the area you want to reach.
- Central Iowa — area code: 515 (Des Moines)
- Eastern Iowa — area code: 319 (Cedar Rapids)
- South-Central Iowa — area code: 641 (Mason City)
- Southeastern Iowa — area code: 563 (Davenport)
- Western Iowa — area code: 712 (Sioux City)
Why get a local Iowa number?
A Iowa area code number gives your business three core advantages:
- Local trust signal. Customers in Iowa recognize local area codes as their own. A familiar caller ID builds immediate credibility for service businesses, sales teams, and patient communication.
- Higher answer rate. Calls from a local area code are answered far more often than toll-free or out-of-area numbers — industry data puts the lift at 20–40%. That difference matters most for outbound sales, appointment confirmations, and service callbacks.
- Targeted marketing. Advertising a local Iowa number on print, radio, digital, and outdoor channels converts better than a national 800 number for audiences who prefer doing business locally.
How to get a Iowa area code number with DialPhone
Setting up a Iowa business number takes under 10 minutes:
- Sign up for a DialPhone plan. Choose any plan starting at $24/user/month. Free 14-day trial, no credit card required.
- Search available Iowa numbers. Filter the DialPhone number inventory by state, area code, city, or number pattern.
- Choose your number and configure. Assign your new Iowa number to a user or team, configure call routing, voicemail, AI receptionist, and business SMS.
- Port your existing number (optional). Already have a Iowa number? Free number porting completes in 2 to 5 business days with zero service interruption.