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In the original area code system introduced in 1947, Minnesota had two area codes:

  • 612: Minneapolis, St. Paul, Rochester
  • 218: Duluth and the north, plus the entire western half of the state

Area code 507 was created in 1954 from parts of area codes 612 and 218, leaving 218 as it is today, and area code 612 expanded west to cover the area now served by 320, 612, 651, 763, and 952.

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∙ 14y ago
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