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Area code 231 is a telephone area code in the North American Numbering Plan (NANP) for the northwestern portion of the Lower Peninsula in the U.S. state of Michigan.
Browse area code 231 phone numbers, prefixes and exchanges. The 231 area code serves Grand Rapids, Traverse City, Muskegon, Mesick, Petoskey, covering 97 ZIP codes in 24 counties.
The 231 area code is serving the northwestern portion of the Lower Peninsula in the U.S. state of Michigan. To start a free reverse phone lookup, simply enter the full 10-digit number (including the 231 area code) bel...
Mar 9, 2025 · 231 is an area code located in the state of Michigan, US. The largest city it serves is Muskegon. Location, time zone and map of the 231 area code
Find 231 area code details including city, time zone, and map. Lookup area code 231 phone number, name, and location.
Oct 26, 2025 · Where Is Area Code 231? Updated: October 26th 2025 Area code 231 is found in Michigan and serves the northwestern portion of Michigan’s Lower Peninsula. Area code 231 stretches all the way from Muskegon...
Area code 231 is located in Michigan. Get the area’s map, cities covered, current time, prefixes, and dialing instructions.
231 Area Code: time zone, cities, phone numbers, and reverse phone lookup: 🕵️ Find who is behind a 231 phone number and where 🗺️ they are from.
Nov 16, 2025 · Flight status, tracking, and historical data for Delta Air Lines 231 (DL231/DAL231) including scheduled, estimated, and actual departure and arrival times.
Nov 1, 2025 · 231 Area Code located in Michigan, including 105 cities, 22 counties, 1 time zone, map, Census demographics, and 548 active prefixes.
