T-Mobile reports gain of 579,000 customers in Q1 2013

T-Mobile USA’s turnaround efforts appear to be gaining traction, according to preliminary first-quarter results released this evening.

The wireless carrier’s net customer base grew by 579,000 to finish the quarter with 34 million customers, T-Mobile said. T-Mobile’s branded customer base grew by 3,000, compared with a loss of 349,000 in the fourth quarter of 2012.