Prices starting at
$50/mo.plus tax
Meet your gigabit fiber internet provider in South Dakota
- Price for life*
- No Annual Contracts
- Unlimited data
*Keep your internet service monthly rate for as long as you keep your plan! Internet service monthly rate subjected to continued plan availability.
Find Quantum Fiber in South Dakota
Where can I find fiber internet in my area?
The future of multi-gig internet with speeds of up to 3 Gbps and even 8 Gbps is closer than you think. In fact, you can find fiber internet availability in your area right now. Choose your state above or use the check availability button below and see a comprehensive directory of our fiber internet plans, coverage, and offers for your area.
Pull the plug on slow and unreliable internet
Reliable internet that moves at nearly the speed of light isn’t too good to be true. Quantum Fiber internet is lightning-fast and dependable due to fiber optic cables being less susceptible to severe weather than other types of traditional cables.
Tailor your network with 360 WiFi™
Each network's needs are as unique as the spaces they cover and the people who use them. That’s why dead spots and weak signals can feel impossible to predict. Our 360 WiFi blankets your space with strong signal by learning from your usage while boosting your connectivity where and when you connect the most. We also back up your network with 360 WiFi pods that monitor and maintain your bandwidth so you can say goodbye to dead spots while knowing exactly how your network is being used.
Make the right call with Connected Voice
It doesn’t matter if they're on the next floor or on the other side of the planet. Hearing the voice of a family member, friend, or co-worker can make all the difference in the world. Call, message, and meet at fiber-optic speed and reliability so you don’t lose connection with those who matter most.
Small business? Meet big possibilities.
Between complex payment processing and the importance of social media marketing, modern small businesses need high-speed internet to compete now more than ever. That’s why now is the time to upgrade to internet you can rely on. See how fiber internet can give your small business the speed it needs to compete and innovate in today’s connected business landscape.