Are you aware that Sprint has 40 MHz of spectrum in 90 of the top 100 markets? That's far more than any other provider.

It's entirely Sprint's fault for not building up a reliable network (of course it's in the 2.5 GHz band) on what the FCC has given them.

Edit: Maps of the relative amount of spectrum for U.S. LTE providers is here (Sprint leads the way):

http://www.fiercewireless.com/special-reports/2015-how-much-...