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DSDownloadSpeed
FCC Data · Updated April 2026
A

Interstate Telecommunications Cooperative, INC.

375 ZIP codes · 1 states · 1,000 Mbps max

375
ZIP Codes
1,000
Max Mbps
1
States
100%
Fiber ZIPs
Technologies

Available Connection Types

Fiber (FTTH)
Max Download1,000 Mbps

Avg across service area: 1000 Mbps

Max Upload100 Mbps

Avg across service area: 100 Mbps

Coverage

Largest Markets

StateZIP Codes% of Coverage
South Dakota375100%
Test Your Speed

See how your connection compares to Interstate Telecommunications Cooperative, INC.'s advertised 1000 Mbps max speed.

FAQ

Frequently Asked Questions

How many areas does Interstate Telecommunications Cooperative, INC. serve?

Interstate Telecommunications Cooperative, INC. provides internet service in 375 ZIP codes across 1 states. The areas served by Interstate Telecommunications Cooperative, INC. have an average Broadband Grade of A (score: 89/100).

What speeds does Interstate Telecommunications Cooperative, INC. offer?

Interstate Telecommunications Cooperative, INC. offers maximum download speeds of 1,000 Mbps and upload speeds of 100 Mbps. Average download across their service area is 1000 Mbps. Technologies include Fiber (FTTH).

Does Interstate Telecommunications Cooperative, INC. offer fiber internet?

Yes, Interstate Telecommunications Cooperative, INC. offers fiber internet in 375 ZIP codes (100% of their service area). Fiber provides the fastest and most reliable connections with symmetrical upload and download speeds.

Where is Interstate Telecommunications Cooperative, INC. available?

Interstate Telecommunications Cooperative, INC. is available in 1 states. Their largest markets are South Dakota (375 ZIPs).