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Area code 612

Area code 612


Area code 612 is part of the North
American Numbering Plan of the public switched telephone network for the city
of Minneapolis, Minnesota and a few surrounding areas such as Fort Snelling,
St. Anthony and Richfield. By geographical area, it is the smallest
area code in the state of Minnesota. However, like every single metropolitan
area code in the United States, the region used to be much larger,
accounting for the entire Twin Cities region and a wide area surrounding it.
The Twin Cities metro calling area is the largest geographic toll-free calling
zone in the United States. A 1947 map of the NANP showed the region
defined as roughly one third of the area of Minnesota, with the separating line
extending westward from Duluth to the center of the state, then down through
the center. The rest of the state consisted of area code 218, which formed
an r-shaped region around the 612 area code.
In 1954, the state was divided into three area codes. Part of the southern
portion of the previous 612 territory, including Rochester and Mankato, was
combined with the southwestern portion of 218 to form the new area code 507.
The 612 area code was rotated out to reach the western edge of the state,
stretching from border to border from Wisconsin to South Dakota. It still
included the Twin Cities, but no longer extended far to the north. The 218
region was reshaped more square, covering roughly the northern half of
the state. This configuration remained in place for 42 years.
In 1996, almost all of the old 612 territory outside of the Twin Cities
became area code 320. The 612 region was roughly split in half two years later in
1998, mostly following the Mississippi river. The area west of the Mississippi,
including Minneapolis, retained the old code, while most of the area east of the
Mississippi—including St. Paul—gaining the new area code 651. The most recent
split occurred in 2000, when the 612 code shrank to its current size in a
three-way split. Area code 763 was created to include the northwest
suburbs, and area code 952 began to be used for the southwest suburbs. The area
code splits in the Twin Cities are unusual because they split along
municipal, rather than central office, boundaries. This led to a sizeable
number of exchanges being divided between two area codes, and a few being
divided between three. The eastern half of the University of
Minnesota, Twin Cities campus, in the St. Paul suburb of Falcon Heights, is a
notable exception to the regional numbering plan. Because of an integrated
phone system linking both campuses, the Falcon Heights campus remained in 612
after the 1998 split. Cities and communities within area code
612 City of Minneapolis
Richfield St. Anthony
Fort Snelling University of Minnesota
See also List of North American area codes
References ^ “Commentary about the area code
split”. 2003-10-28. Retrieved 2012-02-19.
External links NANPA: Minnesota area code map
Area code history 1947 Area Code Assignment Map

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