T-Mobile had a strong quarter, today reporting total revenue growth of 8 percent and the addition of 1.5 million new customers.

The service provider also reached a milestone 50 million customers in the second quarter.

"We have completely reversed T-Mobile's trajectory and started a revolution that is changing the rules in wireless," CEO John Legere said in a statement. "We are proud to be the fastest growing wireless company in America."

T-Mobile chalked its success up to recently launched services like T-Mobile Test Drive, which invites customers to try an Apple iPhone 5s on the Un-carrier network at no cost for seven days. Recently, it also added a Music Freedom feature for Simple Choice customers, which lets them stream tunes from popular services without draining 4G data.

Of course, more customers means more money: The number four U.S. mobile operator saw a 15.4 percent increase in revenue, reaching $7.2 billion in the second quarter. It also earned $391 million in the three months ending in June, compared to a $16 million loss a year earlier.

The news comes as T-Mobile CEO John Legere took shots at rival AT&T in unveiling a new Simple Choice family plan, which allows a family of four paying $100 a month to share up to 10GB of LTE data, with each person getting 2.5GB. Legere compared that to AT&T's "Best-Ever" Mobile Share plan, which offers 10GB of monthly data for $160.

T-Mobile's new tactics appear to have piqued the interest of French provider Iliad, which will reportedly battle with Sprint to acquire T-Mobile. For more, check out PCMag Live in the video below, which discusses T-Mobile's gains.