PROJECTS & UPDATES
TYNDALL FIBER
EXPANSION
SDI is bringing high-speed Fiber Internet to Tyndall, connecting homes and businesses with reliable service built for today and tomorrow.
We're Building
What's Next
We're bringing Fiber Internet to Tyndall, giving homes and businesses access to fast, reliable connectivity built for the way people live and work today.
Fast, Reliable Fiber Internet
Up to 1 Gig speeds with no data caps and no hidden fees.
Connecting What Matters
Supporting homes, businesses and the future of Tyndall.
Built for the Long Term
A network designed to support Tyndall for generations to come.
Local People, Local Support
Our team is right here in the communities we serve.
Fiber service available
Planned fiber expansion
TYNDALL FIBER
PROJECT UPDATES
PHASE 1 - COMPLETE
Construction is complete in the first portion of Tyndall. Customer installations are underway.
PHASE 2 - CONSTRUCTION
Engineering is complete and permitting is underway. Construction is expected to begin in Q4 2026, weather permitting.
PHASE 3 - INSTALLATIONS
Customer installations are expected to begin in Q1 2027, as construction and testing are completed.
If you're in the Tyndall fiber project area, you'll need to complete our Service Line Agreement (SLA) before installation.
TYNDALL FIBER PROJECT
Explore the map below to see where Fiber Internet is available now and where we're expanding.
READY TO GET CONNECTED?
CONNECTING
SOUTH DAKOTA TO
WHAT MATTERS MOST.
Want to know if Fiber Internet will be available at your address? Contact us and we'll check for you.
📞 605-689-2525