Whats the best cellular service in Massachusetts?

[m1ke101]

my friend is going to college in Massachusetts (harvard) and she wants to know whats the best cellular service provider with nationwide coverage beacuse shes going to be making a lot of calls back here to california.

 

[Hayabusa Rider]

IMO Sprint. Good value. Poor coverage off the beaten path, but in the Metro areas and along major roads very good.