Mainstream Fiber Networks provides fiber to the home, business, and beyond. We do not stop at the utility poles with our fiber, instead, we deliver fiber from the pole all the way to your home, business, school, office, or wherever else it may be needed. Currently our network in Brown County is over 25 miles long and steadily growing.


We are a locally owned and operated fiber optic internet provider based out of Nashville, Indiana. Our local team is dedicated to delivering comprehensive community infrastructure and a superior broadband solution to rural communities throughout Indiana.

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Service might already be available in your area. To see if your neighborhood is connected, check service availability here, at the map below, or call our office at (844) 752 – 6736.

If your neighborhood isn’t connected, be sure to join our list. This allows you to stay informed on the status of the project and recent information about services in your neighborhood. Neighborhoods that have the most interest are first to be considered for expansion.


Our fiber optic internet and voice solutions are available to any home within these areas. Residents can sign up to be connected at any time!

Service is coming soon! You are able to sign up for service. Construction of our network infrastructure is currently in progress. Those who join the list early will be the first in the area to be notified and connected.

These areas are being considered for service expansion. In order to get connected, we require more interest through our Quick Connect List to construct in these neighborhoods, or we are in the primary phases of expanding. Neighbors here should join the list, spread the word, and follow their zone! Proactive neighborhood zones get connected first, and those who join the Quick Connect List will receive service updates.

Some areas are not covered by our map. We may simply not be close enough with our mainline network yet, or we have had very little interest shown in these neighborhoods. Many factors go into the design and construction of our network, so when neighbors show us where the most interest is, it tells us where to expand our service.

The map is provided to you for informational purposes only and shows the current status of the project.  The map will be updated as the project progresses, changes are made, and expansion areas added based on community interest.

Don’t see our service in your neighborhood on the map?  We expand based on interest.  Joining our Quick Connect List will keep you informed of the project and tell us where to expand next.

If your neighborhood is connected, you can sign up right away and start enjoying the internet you deserve!

Better Connection = Better Life

Our home internet solution delivers over 3x the download speed of any other satellite, DSL, wireless, and cable connections when you select our 1 Gb plan.  Even our basic plan receives a reliable 100 mbps download speed which blows past the speeds offered by the other internet providers.

The best part? It’s 100% fiber so it’s secure, reliable, unlimited, and will even increase your home value!

Now you can stream your favorite shows, work from home, study online, manage your bills, stay connected with loved ones, and so much more. Mainstream’s fiber speeds can tackle anything life throws at you so that you have more time to enjoy the little things.

Keep things moving with

Our team of experts provides customized business solutions for organizations of all sizes.

A reliable 100% fiber solution will provide the bandwidth to keep your team moving and profits growing.

Fiber voice solutions

Both business and internet clients can take advantage of our voice options, which provide you with a clear and consistent delivery for all your calls.  You can even keep your current number!

Businesses can choose between digital and managed voice systems, so no matter the size of your operation, we have the perfect solution for you.

Solutions for your business

Our expert team of business network professionals provides custom business solutions for organizations of all sizes, including security, fiber transport from point to point, and wireless connections for large spaces.