Merrimac Communications is Now TDS®
We’re delighted to bring our exceptional Internet, TV and phone services to Merrimac, Prairie du Sac, Sauk City, and surrounding areas.
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Best Deals
LEARN MOREYour best overall value! Shop our most popular deals, or customize your own. You may also be eligible for special offers or additional discounts when you bundle your services.
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Internet
LEARN MOREMake TDS® your provider for reliable high-speed Internet and premium WiFi – including fiber packages with speeds up to 1Gbps in select areas. It's all backed by our 30-Day Money-Back Guarantee.
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TV
LEARN MOREExperience the best in home entertainment with our all-digital TV packages, which include connected-home DVR options, lots of HD channels, TV Everywhere and more.
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Phone
LEARN MOREEnjoy reliable, crystal-clear calling and advanced features with any TDS home phone package. Multiple plan options make it easy to find the package that best fits your needs.
TDS Connect Blog

Catch a free preview of Paramount+ with SHOWTIME on TDS TV!
Watch the return of Dexter with the first two episodes of the new series "Dexter: Resurrection."
Why TDS fiber beats other providers
Other local providers may say they offer “fiber,” but often simply add fiber to their existing cable lines, leading to lower upload speeds.
F-Secure, TDS Telecom launch powerful scam protection service
The enhanced cybersecurity features in the TDS Internet Security Suite comes as online scams are exploding in volume and sophistication.