T-Mobile USA Announces 20-Million Customer Milestone

September 19, 2005

High Customer Satisfaction and T-Mobile's Get More® Promise Credited for Reaching Landmark

Bellevue, Wash. — Sep. 20, 2005

T-Mobile USA, Inc. announced today that it now has surpassed 20 million wireless customers, having doubled its customer base during the past ten quarters.

"I personally thank our 20 million customers for their continued loyalty to T-Mobile, and for recommending T-Mobile to family and friends," said Robert Dotson, President and Chief Executive Officer, T-Mobile USA.

The company credits this achievement in-part to the success it has had in delivering on its Get More® promise to its customers. T-Mobile's commitment to offer more minutes, features and service has resonated with consumers.

"Customer-centric service, value leadership, and services innovation is the foundation for our customer growth," Dotson said. "T-Mobile will continue to grow by meeting the needs of its customers, rapidly expanding network coverage, and offering widely accessible and meaningful devices, features and services."

T-Mobile USA reached the 10-million customer mark during the first quarter of 2003.

Earlier this month, T-Mobile USA, Inc. announced that it had earned the highest rankings in all six regions surveyed in the J.D. Power and Associates 2005 Wireless Regional Customer Satisfaction Index StudySM for the second consecutive year.

Lindsay Morio

T-Mobile USA Media Relations



About T-Mobile USA, Inc.

Based in Bellevue, Wash., T-Mobile USA, Inc. is the U.S. wireless operation of Deutsche Telekom AG. By the end of the first quarter of 2010, approximately 150 million mobile customers were served by the mobile communication segments of the Deutsche Telekom group - 33.7 million by T-Mobile USA - all via a common technology platform based on GSM and UMTS, the world's most widely used digital wireless standards. T-Mobile USA's innovative wireless products and services help empower people to connect to those who matter most. Multiple independent research studies continue to rank T-Mobile among the highest in numerous regions throughout the U.S. in wireless customer care and call quality. For more information, please visit http://www.T-Mobile.com. T-Mobile is a federally registered trademark of Deutsche Telekom AG.