Area Code 641

Mason City, Iowa · CST/CDT (UTC-6) · United States

Area Code
641
City
Mason City, IA
Time Zone
CST/CDT
UTC Offset
UTC-6 / UTC-5 DST
DST
Observed
Introduced
2000

Where Is Area Code 641?

Mason City, Marshalltown, Ottumwa — central and southern Iowa

Rural Iowa. Mason City is the inspiration for "The Music Man."

Major Cities & Neighborhoods
Mason CityMarshalltownOttumwaFort Dodge

Time Zone for Area Code 641

Standard Time
CST (UTC-6)
Daylight Time
CDT (UTC-5)
DST 2026 Start
March 8, 2026
DST 2026 End
November 1, 2026
Country
United States
IANA Zone
America/Chicago

Frequently Asked Questions

Where is area code 641?

Area code 641 is located in Mason City, Iowa (United States). It covers Mason City, Marshalltown, Ottumwa — central and southern Iowa.

What time zone is area code 641 in?

Area code 641 (Mason City, Iowa) is in the CST/CDT time zone. Standard time is UTC-6 and UTC-5 during Daylight Saving Time.

Is area code 641 a scam?

Area code 641 is a legitimate NANPA-assigned code serving Mason City, Iowa. However, scammers can spoof any area code. If you receive an unexpected call from (641), verify the caller before sharing personal information.

What time is it in area code 641 right now?

Area code 641 follows CST/CDT (UTC-6). See the live clock at whattime.city/des-moines/ for the exact current time in Mason City.

When was area code 641 introduced?

Area code 641 was introduced in 2000. Rural Iowa. Mason City is the inspiration for "The Music Man."

Other Iowa Area Codes