Unlimited data may no longer be truly unlimited for some of Sprint's heaviest data-using customers.
T-Mobile gained 2.4 million new subscribers in the first quarter which shows that the radical changes its CEO have made to how is sell mobile phone service are working.
Breaking down the pros and cons of the rumored Sprint takeover of T-Mobile.
A tough-talking CEO has pushed T-Mobile into the forefront of the battle for mobile phone customers, and Sprint may be the company suffering the most.
Is this meaningful or just another movement?
AT&T and Verizon are beset on all sides today, as smaller rivals stole their customers and continued plotting a combined assault. But the Dow stocks hardly moved.
Shares of AT&T, T-Mobile, Sprint, and DIRECTV are on the rise.
Verizon, AT&T, Sprint, or T-Mobile: Which is the best investment?
Despite four players in the industry, two are dominating, and the Federal Communications Commission wants to change that. The FCC is looking to auction bandwidth, which could turn the entire industry upside down.
T-Mobile is launching new antenna technology to make its network more reliable, but it may not be enough to ward off faster speeds from Sprint.