Area code 641
Get a 641 phone number
To get a 641 phone number, pick an available 641 number below and sign up for AvoCall. Your new number works for calls and texts on the phone you already own over WiFi or data. Current web pricing is verified at checkout. No second SIM and no new device are required.
- Location
- Mason City, IA, Iowa
- Time zone
- Central (GMT -6)
- Related area codes
- Related:515
The 641 area code covers Mason City, IA and nearby Iowa communities.
Top 20 641 numbers available right now
Pulled live from our carrier network. Last updated: August 25, 2026 at 11:01 PM UTC.
Every number requires an AvoCall plan. Current web pricing is verified at checkout, and number availability changes often.
About the 641 area code
Since 2000, area code 641 has covered a swath of Iowa that includes Mason City, Ames, Marshalltown, Ottumwa, and Grinnell, every one of them on Central time.
The code owes its existence to a split, its territory having been drawn out of area code 515. It carries no overlay and has produced no offspring codes, and its boundaries are the same today as they were at the start.
Dialing note: 641 was carved out of the 515 territory and went into service in 2000.
Numbering details on this page (service dates and overlay status) are checked against the NANPA numbering registry. Registry data as of 07/16/2026.
641 phone number FAQ
- How do I get a 641 phone number?
- Pick an available 641 number and sign up for AvoCall. Your new Mason City, IA number works for calls and texts on your existing phone over WiFi or data. Current web pricing is verified at checkout. There is no second SIM and no new device.
- Where is the 641 area code?
- It serves Mason City, IA and nearby cities in Iowa, including Ames, Marshalltown, Mason City.
- Can I receive verification codes on a 641 number?
- AvoCall 641 numbers support calling and messaging. Verification-text compatibility varies by sender; short-code and 2FA delivery is not guaranteed.