CRST Telephone Authority

CRST Telephone Authority Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from CRST Telephone Authority, Telecommunication Company, 625 N Main Street, Eagle Butte, SD.

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.

08/11/2026

CRST Telephone Authority will be closed on Thursday, August 13, 2026.

07/24/2026

Due to an area wide system failure there are some areas that are without internet and phone. We are currently working on the issue and hope to get the issue resolved soon. Sorry for the inconvenience.

Come into the office and get your application and bring documents back to see if you qualify.
07/16/2026

Come into the office and get your application and bring documents back to see if you qualify.

07/02/2026

CRST Telephone Authority will be closed on July 3, 2026 and will re-open to regular hours on July 6, 2026.

06/29/2026

ATTENTION ALL PHONE CUSTOMERS OF CRST TELEPHONE!

THERE WILL BE AN UPGRADE ON JUNE 30, 2026 AND JULY 1, 2026 FROM 12:00 AM TO APPROXIMATELY 1:00 AM ON BOTH OF THESE NIGHTS. THE PHONE SERVICE WILL NOT BE AVAILABLE DURING THIS TIME!

ANY QUESTIONS PLEASE CALL THE OFFICE AT 605-964-2600.

HAPPENING TODAY!
06/11/2026

HAPPENING TODAY!

HAPPENING JUNE 11,2026 PLEASE COME AND JOIN US FOR A NICE MEAL AND DOOR PRIZES!

JUST A FRIENDLY REMINDER THAT THURSDAY THIS WILL BE HAPPENING!
06/09/2026

JUST A FRIENDLY REMINDER THAT THURSDAY THIS WILL BE HAPPENING!

HAPPENING JUNE 11,2026 PLEASE COME AND JOIN US FOR A NICE MEAL AND DOOR PRIZES!

HAPPENING JUNE 11,2026 PLEASE COME AND JOIN US FOR A NICE MEAL AND DOOR PRIZES!
06/04/2026

HAPPENING JUNE 11,2026 PLEASE COME AND JOIN US FOR A NICE MEAL AND DOOR PRIZES!

Address

625 N Main Street
Eagle Butte, SD
57625

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

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