Area code lookup

What area code is 641?
Here's everything about it.

Instant lookup for the 641 area code — location, time zone, cities served, and who's been calling from it. No sign-up, no app.

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Caller ID · NPA-NXX-XXXXLive
Area code
641
Iowa state flag
Location
Mason City, IA
Local time
--:--:-- --
Mason City · Oskaloosa · Creston · Pella · Ottumwa · Britt · Clear Lake · Fairfield
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641 at a glance

Summary
State
Iowa
Time zone
Central (CT)
UTC offset
UTC−6 / −5 DST
Observes DST
Yes
Country
United States
In service since
2000
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Cities & regions served by 641

Mason City
Mason CityOskaloosaCrestonPellaOttumwaBrittClear LakeFairfield

8 communities on record for 641.

Where 641 sits on the map

No overlay

Coverage area

641IA · Central (CT)

About the 641 region

641 covers Mason City in Iowa, including Oskaloosa, Creston, Pella, Ottumwa and Britt. The code has been in service since 2000.

641 currently has no overlay, so its territory keeps a single, unshared code.

Split of 515.

Who called me from 641?

Community reports
No 641 reports yet — here is what to do in the meantime
  • Caller ID is trivially spoofed: an incoming call that displays 641 does not prove the caller is really in the 641 region or even in the United States.
  • Avoid calling back unknown one-ring numbers — some premium-rate scams rely on curiosity callbacks.
  • Never share verification codes, payment details, or remote access during an unsolicited call, even if the caller claims to be your bank or a government agency.
  • When a 641 call pressures you to act immediately, hang up and contact the organization directly through its official number.

Be the first to add a community report for a 641 number below.

Got a call from 641 that isn't listed?

Frequently asked questions

FAQ
What area code is 641?+

641 is a telephone area code serving Mason City in Iowa, United States, in service since 2000.

Where is area code 641 located?+

It covers Oskaloosa, Creston, Pella, Ottumwa and Britt in Iowa.

What cities are in area code 641?+

Major communities on record include Oskaloosa, Creston, Pella, Ottumwa and Britt, among others. The code's territory spans the Mason City region of Iowa.

What time zone is 641?+

641 observes Central (CT), which is UTC−6 / −5 DST and follows daylight saving time.

When did area code 641 start?+

641 entered service in 2000. Its history: split of 515.

Is 641 a scam area code?+

Scam and robocall traffic can use any North American code, 641 included — caller ID is easy to spoof, so the code alone does not tell you who is really calling. Check the community reports on this page before calling back an unknown 641 number, and report anything suspicious.

Can I get a 641 phone number?+

Yes — most mobile carriers and VoIP providers let you request a 641 number regardless of where you physically live.

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