319 Area Code — Cedar Rapids, IA
Area code 319 serves Cedar Rapids and 3 other cities in Iowa. Local time follows America/Chicago. It has no overlay codes.
- State
- Iowa
- Primary city
- Cedar Rapids
- Timezone
- America/Chicago
- In service since
- 1947
- Type
- Geographic
- Overlay codes
- None
Cities Served by 319
The 319 area code covers 4 cities and communities in Iowa.
- Cedar Rapids
- Iowa City
- Waterloo
- Dubuque
About Area Code 319
Area code 319 is a North American Numbering Plan (NANP) area code that has been in service since 1947. It is administered by NANPA on behalf of the FCC and serves the Iowa region anchored on Cedar Rapids.
319 is currently a single-coverage geographic area code with no overlays. This means a 7-digit number in this area code is unique within its rate centers, though best-practice is always to dial the full 10-digit number when contacting a 319 line.
Mobile numbers in 319 are portable: a person who moved away from Cedar Rapids may still carry a 319 mobile number on their device. If you receive an unexpected call from a 319 number, run it through the reverse lookup tool above for the most accurate, free identification.
If you live or do business in Iowa, you may also interact with neighbouring or overlay codes. See the related codes section below to explore the rest of Iowa.
Other Iowa Area Codes
Continue exploring the Iowa numbering plan.
319 Area Code FAQ
Where is area code 319?
Area code 319 is located in Iowa, primarily serving Cedar Rapids and surrounding cities including Iowa City, Waterloo, Dubuque. The region operates on CT (America/Chicago) time.
What state is 319 area code?
319 is a Iowa area code. It was put into service in 1947 and has no overlay codes — it covers its geographic area exclusively.
Is 319 a scam area code?
319 is a legitimate North American area code allocated by NANPA to Iowa. Like any geographic area code, scammers sometimes spoof 319 numbers — judge each call by content (urgent demands, unfamiliar transfers) rather than the area code alone. Run the specific number through our reverse lookup if you're unsure.
What time zone does 319 use?
Area code 319 operates on CT (America/Chicago). Numbers in this area code follow standard Iowa time-zone rules including any daylight-saving transitions for that region.
Can I look up a specific 319 phone number?
Yes. Use the reverse lookup widget above to enter a full 319 number. NumLocation returns the line type (mobile, landline, VoIP), carrier, rate-center city, and any public listings tied to the number — free.