Area code 906

Area code 906 is the telephone area code in the North American Numbering Plan (NANP) for the Upper Peninsula of Michigan.

Map of area code 906 in Michigan.

History

Area code 906 was assigned in an area code split of numbering plan area (NPA) 616 on March 19, 1961 in a flash cut, which means no permissive dialing period was implemented. 906 is among the least populous numbering plan areas in North America, serving only about 320,000 people. Therefore, the most recent NANPA projections do not list an exhaust date, explaining that the projected exhaust date is more than 30 years in the future.[1] The area code has inspired an unofficial holiday in the Upper Peninsula on September 6 (906 correlating to the month/day date).[2]

Service area

Area code 906 is used in the following cities:

Isle Royale National Park and Mackinac Island also use the 906 area code.

Bois Blanc Township in the only municipality in the Upper Peninsula to not use area code 906, as it uses area code 231.

Most of the numbering plan area is in the Eastern Time Zone, except for the counties bordering Wisconsin, which are in the Central Time Zone.

See also
  • List of NANP area codes

References
  1. https://nationalnanpa.com/reports/2020-1_NPA_Exhaust_Projections_Final.pdf
  2. Gmiter, Tanda (6 September 2016). "Happy #906 Day to da U.P., eh!". MLive. Retrieved 6 September 2017.
Michigan area codes: 231, 248/947, 269, 313, 517, 586, 616, 734, 810, 906, 989
North: 705/249, Lake Superior
West: 715/534 area code 906 East: 705/249, Lake Huron
South: 231, 715/534, 920, Lake Michigan
Ontario area codes: 226/519/548, 249/705, 289/365/905, 343/613, 416/437/647, 807
Wisconsin area codes: 262, 414, 534/715, 608, 920


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