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Michigan's numbering plan expanded from three area codes in 1947 to twelve: 1947: Area codes 313, 517 and 616 are three of the original 86 area codes in the North American Numbering Plan. 1961: Area code 906 was created in the first split of 616. 1993: Area code 810 was created in the first split of 313. 1997: Area code 734 was created in the ...
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Each NPA was identified by a three-digit area code used as a prefix to each local telephone number. The United States received seventy-seven area codes, and Canada nine. The initial system of numbering plan areas and area codes was expanded rapidly during the ensuing decades, and established the North American Numbering Plan (NANP).
Pages in category "1990 in Michigan" The following 3 pages are in this category, out of 3 total. ... Code of Conduct; Developers; Statistics; Cookie statement;
The following is a list of counties in Michigan with populations of at least 150,000 based on 1990 U.S. Census data. Historic census data from 1980 and 2000 are included to reflect trends in population increases or decreases. Counties that are part of the Detroit metropolitan area are shaded in tan.
Tahquamenon Falls in the Upper Peninsula of Michigan.. The heavily forested Upper Peninsula is relatively mountainous in the west. The Porcupine Mountains, which are part of one of the oldest mountain chains in the world, [3] rise to an altitude of almost 2,000 feet (610 m) above sea level and form the watershed between the streams flowing into Lake Superior and Lake Michigan.
Map highlighting area code 586 in Michigan. Area code 586 is the telephone area code serving much of Macomb County, Michigan, introduced in 2001 as a split from area code 810. Its territory was originally part of area code 313.
The location of the state of Michigan in the United States of America. The following outline provides an overview of and topical guide to the U.S. state of Michigan: Michigan is located in the Great Lakes Region of the United States of America, comprising two peninsulas.