F5 Networks to Present at the Lehman Worldwide Wireless and Wireline Conference

Lehman Worldwide Wireless and Wireline Conference

F5 Networks, Inc. (NASDAQ:FFIV), the global leader in Application Delivery Networking, announced today that company management will participate in the Lehman Worldwide Wireless and Wireline Conference at the Hilton Hotel in New York, N.Y. F5’s presentation is scheduled for 10:45 a.m. Eastern Time, Wednesday, May 28. F5 representatives will include John McAdam, President and Chief Executive Officer, and Andy Reinland, SVP and Chief Finance Officer. Interested viewers can go to www.f5.com/about/investor-relations/events-calendar.html to access a direct link to the webcast. F5’s webcast will be accessible through June 27, 2008.

About F5 Networks

F5 Networks is the global leader in Application Delivery Networking. F5 provides solutions that make applications secure, fast and available for everyone. By adding intelligence and manageability into the network to offload applications and optimize the data storage layer, F5 extends the power of intelligent networking to all levels of application delivery. F5’s extensible architecture intelligently integrates application optimization, protects the applications and the network, and delivers application reliability. Over 16,000 organizations and service providers worldwide trust F5 to keep their applications running. The company is headquartered in Seattle, Washington, with offices worldwide. For more information, go to www.f5.com.

Contacts

F5 Investor Relations
John Eldridge, 206-272-6571
j.eldridge {at} f5(.)com