https://www.cnet.com/news/sprint-customers-ebb-as-it-awaits-lifeline-from-t-mobile/

Amid its work, Sprint reported fiscal second-quarter results that showed a slight slowdown in customers. The company lost 34,000 postpaid phone customers, or people who pay at the end of the month, and 20,000 total wireless customers. 

Sprint's results reflect a cooling down around the industry as carriers pull back on aggressive promotions, even with the launch of Apple's iPhones. Gone are the free iPhone deals -- carriers are content to dig in on preserving their customer base with select deals. As result, T-Mobile once again led the industry with customer growth, while Verizon also made decent gains. AT&T struggled to eke out a little phone growth, and Sprint, as usual, followed the pack.