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Nationwide Coverage

Whether you're traveling the Hi-Line or on vacation in New York City, you can depend on Triangle Mobile.

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The best experience where it matters most.

More towers on the Hi-Line than any other carrier.

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For the Montana in You

Get to know Triangle Mobile

There’s no reason to be stuck with unreliable service, dropped calls, and data that slows you down. Triangle Mobile is a local provider that knows good coverage is most important closest to home. That’s why we provide the best coverage—hands down—on Montana's Hi-Line, building towers where the big guys won’t. But that doesn’t mean you’ll be stuck when you travel: our national partnerships let us offer the same nationwide coverage you’ve come to expect. We offer the latest phones and local customer service from people who are true Montanans, just like you.

For the best experience, take a look at Triangle Mobile. We’re here for the Montana in you.

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What our customers say


Melanie Sloan

We switched to Triangle after seeing that there was service all the way up to the Canadian border. We love the coverage we now have with Triangle. Dead spots are fewer and fewer! And they have everything all the other competitors have. We would never go back.

Darrius Furman

Reliable service. I haven't had any issues yet and I've been with Triangle Mobile for over a year.

Anita Stevenson

Couldn't ask for better people to work with. Exceptional service.

Madge Waritz

Triangle Mobile is there when you need help.


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