There are four major wireless service providers in the United States, and that doesn’t look like it’s going to change anytime soon. What can change is the positioning of those for carriers, which is currently Verizon at the top, followed by AT&T, Sprint, and T-Mobile respectively. T-Mobile has been doing exceptionally well these past few months thanks to its aggressiveness, and analysts have been predicting it could overtake Sprint at any time, and it looks like that time may be now.