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Area code 231. Coordinates: 44.5°N 85.5°W. 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 , History.
- List of Michigan area codes
This is a list of telephone area codes in the U.S. state of...
- List of Michigan area codes
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. Local time. 8:15:41 AM, Friday 24, May 2024 EDT. Time difference to GMT/UTC. Daylight Saving Time 2024 (Summer Time) DST starts on Sunday 10 March 2024, 02:00. DST ends on Sunday 03 November 2024, 02:00
This is a list of North American telephone area codes in effect for the North American Numbering Plan (NANP). The area to which an area code is officially assigned is known as a Numbering Plan Area (NPA). An area code is part of a telephone number in the United States, Canada, and the Caribbean.
List of North American Numbering Plan area codes - Wikipedia. Contents. hide. (Top) Area codes in numerical order. 200–299. 300–399. 400–499. 500–599. 600–699. 700–799. 800–899. 900–999. Area codes by country, state, province, and regions. United States. Canada. Caribbean and Atlantic islands. U.S. Pacific territories. Non-geographic area codes.
CodeTerritory Or UseDate200not in use; available for non-geographic ...easily recognizable code (ERC)New Jersey ( Bergen County and Hudson ...19471947Southwestern Connecticut ( Bridgeport, ...1947Area Code 231 is officially in Michigan. Other Michigan Area Codes. 231, 248, 269, 313, 517, 586, 616, 679, 734, 810, 906, 947, 989. Michigan Area Code Overlays. (248 and 947) Area Code 231 History: 06/05/1999. Area code 231 was officially put into service. Area code 231 was created from a split of area code 616.
Sprint Spectrum, L.P. 2011/12/28. Area code 231 is located in Michigan. Get the area’s map, cities covered, current time, prefixes, and dialing instructions.
