Area Code 231

Muskegon, Michigan · EST/EDT (UTC-5) · United States

Area Code
231
City
Muskegon, MI
Time Zone
EST/EDT
UTC Offset
UTC-5 / UTC-4 DST
DST
Observed
Introduced
1999

Where Is Area Code 231?

Muskegon, Traverse City, Cadillac — northwestern lower Michigan

Lake Michigan coast. Popular summer vacation destination.

Major Cities & Neighborhoods
MuskegonTraverse CityCadillacManistee

Time Zone for Area Code 231

Standard Time
EST (UTC-5)
Daylight Time
EDT (UTC-4)
DST 2026 Start
March 8, 2026
DST 2026 End
November 1, 2026
Country
United States
IANA Zone
America/New_York

Frequently Asked Questions

Where is area code 231?

Area code 231 is located in Muskegon, Michigan (United States). It covers Muskegon, Traverse City, Cadillac — northwestern lower Michigan.

What time zone is area code 231 in?

Area code 231 (Muskegon, Michigan) is in the EST/EDT time zone. Standard time is UTC-5 and UTC-4 during Daylight Saving Time.

Is area code 231 a scam?

Area code 231 is a legitimate NANPA-assigned code serving Muskegon, Michigan. However, scammers can spoof any area code. If you receive an unexpected call from (231), verify the caller before sharing personal information.

What time is it in area code 231 right now?

Area code 231 follows EST/EDT (UTC-5). See the live clock at whattime.city/detroit/ for the exact current time in Muskegon.

When was area code 231 introduced?

Area code 231 was introduced in 1999. Lake Michigan coast. Popular summer vacation destination.