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  2. List of Minnesota area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Minnesota_area_codes

    Minnesota was divided into a south-eastern area including the Twin-Cities with area code 612 and the rest of the state in the south-west, north, and north-east with area code 218. [2] In 1954, the southern half of 612 was designated a separate numbering plan area with area code 507 as the third area code for the state.

  3. Telephone exchange names - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange_names

    Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]

  4. Area code 218 - Wikipedia

    en.wikipedia.org/wiki/Area_code_218

    A map of Minnesota area codes. Area code 218 is a telephone area code in the North American Numbering Plan (NANP) for the northern part of the U.S. state of Minnesota.It is assigned to the largest of Minnesota's original two numbering plan areas (NPAs), although its geographical boundaries have been modified since inception.

  5. List of North American Numbering Plan area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_North_American...

    Minnesota (Duluth, Moorhead, Thief River Falls, Bemidji, Brainerd, International Falls, and most of northern Minnesota) 1947: 1954: split to create 507; 219: Indiana (Gary area) 1948: split of 317; 2002: split to create 260 and 574; 220: Ohio (suburban Columbus, central Ohio outside of Franklin County) April 22, 2015: overlaid on area code 740; 221

  6. Category : Non-profit organizations based in Minnesota

    en.wikipedia.org/wiki/Category:Non-profit...

    Pages in category "Non-profit organizations based in Minnesota" The following 90 pages are in this category, out of 90 total. This list may not reflect recent changes.

  7. Telephone prefix - Wikipedia

    en.wikipedia.org/wiki/Telephone_prefix

    A telephone prefix is the first set of digits after the country, and area codes of a telephone number. In the North American Numbering Plan countries (country code 1), it is the first three digits of a seven-digit local phone number, the second three digits of the 3-3-4 scheme. In other countries, both the prefix and the number may have ...

  8. Area code 651 - Wikipedia

    en.wikipedia.org/wiki/Area_code_651

    From 1954 to 1996, 612 covered all of central Minnesota, stretching from border-to-border from Wisconsin to South Dakota. In 1996, nearly all of the 612 territory outside the Twin Cities became area code 320. This was intended as a long-term solution, but within a year, the proliferation of cell phones and pagers brought 612 back to the brink ...

  9. List of environmental and conservation organizations in the ...

    en.wikipedia.org/wiki/List_of_environmental_and...

    In addition, some organizations utilize the court system in states and at the federal level to enforce environmental and conservation regulations and laws. Most organizations operate as nonprofits. The revenue of these organizations is used to achieve their goals rather than distributing them as profit or dividends. [1] [2]