Bresnan is a former Cable Internet Provider
Former Bresnan Plans are now offered by Spectrum.
About Bresnan High Speed Internet
Bresnan Communications was a cable provider serving about 300,000 customers in Colorado, Montana, Wyoming, and Utah. In 2010, Bresnan Communications was purchased by Cablevision and their High Speed Internet product became part of the Optimum Online brand. In 2013 the former Bresnan was sold to Charter Communications.
Features of their high speed internet service can be found here: Spectrum High Speed Internet