XM Satellite Radio Schedules First Quarter 2007 Financial Results Conference Call for April 26

XM Satellite Radio (NASDAQ: XMSR) has scheduled a conference call for Thursday, April 26, 2007, at 10:00 AM ET to announce and discuss its first quarter 2007 financial results. Prior to the call, XM Radio’s first quarter 2007 results will be posted to the Company’s website at http://www.xmradio.com/ and released to PR Newswire and First Call.

To listen to the conference call via telephone, please call one of the following numbers approximately 10 minutes prior to the planned start of the call.

Call-in number: (877) 265-5808
Local call-in number: (706) 679-7931
Conference ID#: 5409333

The conference call can also be accessed through a live webcast on the Company’s website at http://www.xmradio.com/ (click on “Investor Info” link at the bottom of the page). The webcast of the call will also be archived on the Company’s Web site.

If you are unable to participate in the scheduled call, a replay of the conference call will be available after 11:30 a.m. ET on Thursday, April 26, 2007 until July 26, 2007.

Playback Numbers: (800) 642-1687
Local playback number: (706) 645-9291
Conference ID#: 5409333