History & Science: Looking at the development of phones
is directly related to the history of the telephone. See more in our
Science of Phones section.
Heroes: Heroes are also a key ingredient in
history. See more heroes in our
Heroes wing.
Location: Denver, CO
Started: 1911
Sold to/Ended: Merged with Colorado Telephone Co and Rocky Mountain Bell to form Mountain Bell, 1911
History:
Tri-State was a relatively large company. It was a fully owned subsidiary of the Colorado Telephone Co. formed to operate exchanges in New Mexico, Arizona and Texas and to bypass regulation by the Colorado Public Utilities Commission. It was a company on paper, but when AT&T mandated the company be merged with Colorado Telephone and Rocky Mountain Bell to form Mountain States Tel. & Tel. (technically, the new Mountain States Co. purchased Rocky Mountain Bell), Tri-State stock was issued to a group of Colorado Telephone Co. executives. Actually, the Tri-State company continued (on paper) until 1919.
Other histories:
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