XM Satellite Radio Tops 6.5 Million Subscribers

Washington D.C., April 03, 2006 -- XM Satellite Radio, the nation’s leading satellite radio company, today announced that it added more than 568,000 net new subscribers during the first quarter of 2006 for a total of more than 6.5 million subscribers. XM is on track to reach nine million subscribers by the end of 2006.

“The first quarter represented another solid quarter of growth in XM subscribers, and is consistent with our goal of nine million subscribers by year end,” said Hugh Panero, President and CEO, XM Satellite Radio. “More importantly, our subscriber growth was achieved economically, with a substantial reduction in the cost to acquire a new subscriber as compared to the fourth quarter of 2005.”

Major initiatives of the second quarter include XM’s exclusive satellite radio play-by-play coverage of Major League Baseball, with Opening Day games today and coverage of every MLB team throughout the season; the next generation of XM radios, including the world’s first portable radios that combine live satellite radio reception and MP3 functionality; XM’s comprehensive coverage of the FIFA World Cup soccer tournament in English and Spanish; and the premiere of Bob Dylan’s XM Radio show.

Information about XM’s new, groundbreaking radios is online at http://www.xmradio.com/xm2go. The broadcast schedule for Major League Baseball games on XM is online at http://mlb.xmradio.com, and information about World Cup Soccer broadcasts on XM is available at http://worldcup.xmradio.com.

About XM Satellite Radio
XM (NASDAQ: XMSR) is America’s number one satellite radio company with more than 6.5 million subscribers. Broadcasting live daily from studios in Washington, DC, New York City, the Country Music Hall of Fame in Nashville, Toronto and Montreal, XM’s 2006 lineup includes more than 170 digital channels of choice from coast to coast: the most commercial-free music, premier sports, news, talk radio, comedy, children’s and entertainment programming; and the most advanced traffic and weather information.

XM, the leader in satellite-delivered entertainment and data services for the automobile market through partnerships with General Motors, Honda, Toyota, Hyundai, Nissan, Porsche, Suzuki, Subaru, and Volkswagen/Audi, is available in more than 130 different vehicle models for 2006. XM’s industry-leading products are available at consumer electronics retailers nationwide. For more information about XM hardware, programming and partnerships, please visit http://www.xmradio.com.

Factors that could cause actual results to differ materially from those in the forward-looking statements in this press release include demand for XM Satellite Radio’s service, the Company’s dependence on technology and third party vendors, its potential need for additional financing, as well as other risks described in XM Satellite Radio Holdings Inc.’s Form 10-K filed with the Securities and Exchange Commission on 3-3-06. Copies of the filing are available upon request from XM Radio’s Investor Relations Department.

Contact Information

Chance Patterson

XM Satellite Radio

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