Deutsche Telekom just announced that John Legere will assume the role of CEO of T-Mobile USA.

Legere, 54, succeeds Jim Alling, who has been serving as interim CEO since June. Legere will take over on September 22, and Alling will return to his role as T-Mobile’s COO.

“John is a talented and proven executive who brings a successful track record of leading and operating consumer- and business-focused telecommunications and technology companies,” said Deutsche Telekom CEO René Obermann. “As T-Mobile moves forward with its strategic initiatives to improve its market position, including expanding its network coverage and initiating LTE service, John has obviously the right skillset to lead the business into the future. John’s experience in the telecommunication and technology industries at Global Crossing and Dell will enhance T-Mobile’s ability to deliver superior mobile experiences for our customers as the Company continues to strengthen its business. I am delighted to welcome John to T-Mobile and look forward to working with him to make T-Mobile a stronger competitor.”

Legere has spent 32 years in the telecommunications and tech industries. He’s the former CEO of Global Crossing. Before that, he was CEO of Asia Global Crossing, a Microsoft, Softbank and Global Crossing joint venture. Before that, he was SVP at Dell, where he was President of the company’s operations in Europe, the Middle East, Africa, as well as in the Asia-Pacific region. Before that, Legere worked at AT&T in a variety of senior positions, including President of AT&T Asia, President of AT&T Solutions Outsourcing and head of global corporate strategy and business development.

“I am thrilled to join T-Mobile and lead the Company at such a pivotal time,” said Legere. “T-Mobile is taking a number of significant steps to revitalize the business and I look forward to leading our team and partners to accelerate these efforts to become a force in our industry.”

T-Mobile is the only major U.S. carrier not to get the iPhone 5.