CRST Telephone Authority Availability Map

CRST Telephone Authority Availability Map. Click for interactive map

CRST Telephone Authority Plans and Pricing

These are a handful of the plans we found for CRST Telephone Authority. To see more CRST Telephone Authority deals and offers in your area enter your zip code above.

  • Download speeds up to: 50 Mbps

    $74/month

    • DSL
    605-964-2600
    Show full details
    • Connection: DSL
    • Data: No Caps

  • Download speeds up to: 100 Mbps

    $94/month

    • Fiber
    605-964-2600
    Show full details
    • Connection: Fiber
    • Data: No Caps

  • Download speeds up to: 150 Mbps

    $110/month

    • Fiber
    605-964-2600
    Show full details
    • Connection: Fiber
    • Data: No Caps

  • Download speeds up to: 250 Mbps

    $125/month

    • Fiber
    605-964-2600
    Show full details
    • Connection: Fiber
    • Data: No Caps

CRST Telephone Authority Availability by State
Fiber South Dakota 0 250 Mbps

Cities and Towns With Coverage

*Accuracy not guaranteed. Use the zip search and check with CRST Telephone Authority directly to verify availability.

Check CRST Telephone Authority availability by address:
powered by Google
Please try again.
Ways to order CRST Telephone Authority:

CRST Telephone Authority Internet Customer Reviews

Customer Reviews and Feedback

Leave a review for CRST Telephone Authority Internet

Are you a current or former CRST Telephone Authority customer? Tell us what you love about CRST Telephone Authority and offer valuable insights for other users.

*Please note we only publish helpful, relevant, and specific reviews. When writing your review, please support your rating with detailed reasoning.

About Our CRST Telephone Authority Speed Test Tool

Whether CRST Telephone Authority is your internet provider or you use a different provider, the speed test below can show key statistics about your internet connection.

This speed test will assess the performance of your broadband connection whether you use CRST Telephone Authority or another provider. The panels above are designed to display results for download speed and upload speed. Download and upload rates are the main indicators of broadband internet connection performance. As of August 2026, CRST Telephone Authority’s average download rate is 0 Mbps. Across their coverage footprint, the average latency on CRST Telephone Authority Internet speed tests is 0ms. For context, wired connections usually have latency in the 5–70ms range. Satellite Internet connections are often as high as 500–800ms.

Download Speed and Latency Test

Speed Test

Get a precise, real-time read of your speed with this simple test, it can measure the performance of your connection regardless of who is your current internet provider. The BroadbandNow team recommends consumers regularly check their internet's performance as it fluctuates regularly and can identify when you need service support or when your household's usage exceeds your current plan's capability

Note: This speed test can be used to test any internet provider, not just CRST Telephone Authority .

If your CRST Telephone Authority speed test result is lower than expected, try resetting your router or call CRST Telephone Authority customer service for additional assistance.

CRST Telephone Authority Internet Speed Data

250 MBPS

Maximum Advertised Download Mbps

CRST Telephone Authority Fastest Download Speeds Over Time

In this chart we've calculated the average speed of the fastest 10% of users who ran a speed test from a CRST Telephone Authority connection in the last 12 months.

CRST Telephone Authority Average Download Speeds Over Time

In this chart we show the average download speed across all 0 users who ran a speed test on their CRST Telephone Authority internet connection in the last 12 months.