Chicago-based U.S. Cellular Corporation (AMEX: USM) is a national wireless company, serving 6 million customers in 189 markets in 26 states. With 2006 service revenues of $3.2 billion, U.S. Cellular maintains one of the industry’s highest levels of customer satisfaction by emphasizing customer support, quality network coverage and comprehensive range of wireless products and services. The company is an active corporate citizen through charitable contributions, award-winning community relations programs and associate volunteer activities.

Founded in 1983, U.S. Cellular and its nearly 8,100 associates are focused on total customer satisfaction, delivering excellent customer service, offering customers great products and services, and generating profitable growth for the company’s investors.

Based in Bellevue, Wash., T-Mobile USA, Inc. is the U.S. operation of Deutsche Telekom AG’s Mobile Communications Business, and a wholly owned subsidiary of T-Mobile International, one of the world’s leading companies in mobile communications. By the end of the first quarter of 2008, 123 million mobile customers were served by the mobile communication segments of the Deutsche Telekom group — 30.8 million by T-Mobile USA — all via a common technology platform based on GSM, the world’s most widely used digital wireless standard. T-Mobile’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 www.t-mobile.com. T-Mobile is a federally registered trademark of Deutsche Telekom AG.