Mason City, Iowa

Central Time Zone (UTC-6) · IA ·

About Area Codes in Mason City, Iowa

Mason City, Iowa is served by area code 641, which was established in 2000 as a geographic split from a larger area code region. The city falls within the Central time zone (UTC-6). All calls to and from Mason City use the 641 area code prefix for local and long-distance dialing.

Frequently Asked Questions

What area code is Mason City, Iowa?
Mason City, Iowa uses area code 641.
What time zone is Mason City in?
Mason City is in the Central time zone (UTC-6).
Do I need to dial 10 digits when calling Mason City?
Standard 7-digit dialing is used for local calls within Mason City. However, 10-digit dialing is always accepted and required for long-distance calls.
When was area code 641 created?
Area code 641 was established in 2000 as a geographic split from a larger area code region to serve the growing population.
What cities share area code 641 with Mason City?
Other cities sharing area code 641 with Mason City include Burlington, Grinnell, Marshalltown, Muscatine, Newton, among others.

Mason City, IA · Central Time Zone