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Fiber for the Future
In our 60+ year history, it has always been our mission to provide the Cheyenne River Sioux Reservation with a modern and reliable communications infrastructure. Today, this includes approximately 1,500 miles of fiber optics reaching 20 communities and spread out over 2.8 million acres of land. This innovative technology offers our Reservation a platform to build and sustain self-sufficient and thriving communities.
C.R.S.T. Telephone Authority began its formal organizational history in 1958 when the Cheyenne River Sioux Tribe purchased a privately owned telephone company.
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