Sprint (NYSE:S) has had a rough few years. A streak of massive subscriber losses have bumped the carrier out of the No. 3 wireless carrier spot, while rival T-Mobile (NASDAQ:TMUS) has made huge subscriber gains over the same period. Additionally, Sprint is still facing a perception that its network isn't as strong as its competitors' after a rocky network upgrade period a few years ago. 

But things are starting to slowly turn around for Sprint. Subscriber numbers are up, churn rates are down, and some competitive promotions are likely to spur more growth. Click on the slideshow below to find out more about Sprint's business, how it matches up to the competition, and what it needs to do to succeed in the wireless carrier space. (NYSE:T)