Area Code 641 at a Glance
| Area code | 641 |
| Region | Iowa |
| Country | United States |
| Primary timezone | America/Chicago |
| Dialing format | +1 (641) NXX-XXXX |
Cities and Places Using Area Code 641
Based on prefix-level carrier data, area code 641 covers places including:
- Mason City, IA
- Fairfield, IA
- Ottumwa, IA
- Marshalltown, IA
- Oskaloosa, IA
- Centerville, IA
- Eldora, IA
- Newton, IA
- Knoxville, IA
- Northwood, IA
- Lake Mills, IA
- Pella, IA
Frequently Asked Questions
Where is area code 641?
Area code 641 serves Iowa, United States.
Who is calling me from area code 641?
A call from area code 641 most likely originates from Iowa, but caller ID can be spoofed. If an unknown caller asks for personal or payment information, hang up and call the organization back on its official number.
How do I dial a 641 number?
Within North America: dial 1-641 followed by the 7-digit number. From abroad: your international prefix (like 00 or +), then 1 641 and the number.