Cambridge, MA |

Akamai Technologies, Inc. (NASDAQ: AKAM), the leading global service provider for accelerating content and business processes online, and XM Satellite Radio, the nation's leading provider of satellite radio with more than 3.77 million subscribers, today announced that Akamai is the lead provider of Internet streaming services for XM Radio Online, available at http://listen.xmradio.com.

XM Radio Online, which complements the XM Satellite Radio service, offers more than 70 channels of commercial-free music and premier talk, comedy, and children's programming that can be accessed through a user's personal computer. This month, XM began offering XM Radio Online to all XM subscribers as part of its basic subscription plan.

"Akamai's on-demand platform has been critical to delivering a high-quality streaming music service for XM's subscribers," said Hugh Panero, CEO, XM Satellite Radio. "By offering XM subscribers the ability to listen to our programming at their computers, we are using the Internet to add tremendous value to our basic service."

"The ability to bring an online radio experience to people is something Akamai is very familiar with, and we're excited to be part of the growth and expansion of XM's business," said Paul Sagan, CEO, Akamai. "The public's appetite for entertainment on demand continues to grow. Along with that growth comes a desire for personalization, choice, and a high-quality user experience. XM has created all of these attributes with XM Radio Online."

Akamai Streaming allows companies to take advantage of a high-quality, reliable streaming service to support brand, e-business, and marketing investments. Companies can leverage Akamai to deliver a superior user experience, reach worldwide audiences, and launch new communication initiatives via the Web. Akamai's distributed EdgePlatform is designed to provide customers with tools to help improve application response time, increase user satisfaction and protect their brand reputation. With over 15,000 servers deployed in nearly 1,000 networks across 69 countries, Akamai can deliver customized content, streaming media, or streaming for use with Macromedia Flash directly to users around the world.

About XM Satellite Radio

XM is America's number one satellite radio service with more than 3.77 million subscribers. Broadcasting live daily from studios in Washington, DC, New York City and Nashville at the Country Music Hall of Fame, XM's 2005 lineup includes more than 150 digital channels of choice from coast to coast: more than 65 commercial-free music channels, featuring hip hop to opera, classical to country, bluegrass to blues; more than 60 channels of premier sports, talk, comedy, children's and entertainment programming; and 21 channels of the most advanced traffic and weather information for major metropolitan areas nationwide. Consumers can experience XM over the Internet through XM Radio Online at http://listen.xmradio.com. For more information about XM hardware, programming and partnerships, please visit http://www.xmradio.com.

About Akamai

Akamai is the leading global service provider for accelerating content and business processes online. More than 1,300 organizations have formed trusted relationships with Akamai, improving their revenue and reducing costs by maximizing the performance of their online businesses. Leveraging the Akamai EdgePlatform, these organizations gain business advantage today, and have the foundation for the emerging Web solutions of tomorrow. Akamai is "The Trusted Choice for Online Business." For more information, visit www.akamai.com.

Akamai Statement Under the Private Securities Litigation Reform Act

The release contains information about future expectations, plans and prospects of Akamai Technologies, Inc.'s management that constitute forward-looking statements for purposes of the safe harbor provisions under The Private Securities Litigation Reform Act of 1995. Actual results may differ materially from those indicated by these forward-looking statements as a result of various important factors including, but not limited to, the effects of any attempts to intentionally disrupt our services or network by unauthorized users or others, failure to have available sufficient transmission capacity, a failure of Akamai's network infrastructure and other factors that are discussed in the Company's Annual Report on Form 10-K, quarterly reports on Form 10-Q, and other documents periodically filed with the SEC.