XO Communications Delivers High-Capacity Network Services to the University of Memphis

University of Memphis Uses XO Gigabit Ethernet Services for Expanded Internet Connectivity for Students and Faculty

HERNDON, VA – August 26, 2008 – XO Communications today announced that it is providing scalable, high-capacity Ethernet services to the University of Memphis.

As the primary provider of high-speed Internet services for the University of Memphis, XO Communications delivers high-speed Internet connectivity directly to the University of Memphis campus through its extensive 500-route mile metro fiber network across Memphis area. The XO solution provides high-speed Internet access over Ethernet, delivering scalable and redundant network connectivity for the University of Memphis with data transfer rates up to 1 Gigabits per second to support the growing Internet connectivity requirements of the University’s faculty and student body.

“As the University of Memphis expands its research and teaching agenda, high-speed Internet services are vital to high performance research computing in the physical and health sciences, to the students and faculty engaged in our innovative and distance learning programs, and to our connection with a variety of community partners,” said Doug Hurley, Vice President for Information Technology and Chief Information Officer at the University of Memphis. “The XO Ethernet service provides the University with the speed and reliability that our students and faculty expect from one of America’s great metropolitan research universities."

“The increased usage of the Internet for communications and research has put higher demands on our networking infrastructure,” said Mark Reavis, Director of Network Services at the University of Memphis. “XO’s Internet service has proven to be very reliable and robust and XO’s technical support staff is among the best in the industry.”

“We’re pleased to be working closely with the University of Memphis,” said Brian Law, sales vice president for the central region at XO Communications. “The increased connectivity from our Ethernet solution will give students, faculty and administration the increased bandwidth to support the growing collaboration in research and teaching online.”

For more information about XO Communications or XO services, please visit www.xo.com or contact an XO sales representative by calling (866) 349-0134.

About the University of Memphis
Founded in 1912, the University of Memphis is a comprehensive metropolitan research university that is recognized nationally and internationally for its academic, research, and athletic programs. With more than 20,000 students, the U of M offers more than 254 areas of study for those seeking bachelor’s, master’s and doctoral degrees. It also offers the juris doctor (law) and education specialist degrees. For more information, go to www.memphis.edu.

About XO Communications
XO Communications, a subsidiary of XO Holdings, Inc. (OTCBB: XOHO), is a leading nationwide provider of advanced communications services and solutions for businesses, enterprises, government, carriers and service providers. Its customers include more than half of the Fortune 500, in addition to leading cable companies, carriers, content providers and mobile network operators. Utilizing its unique combination of high-capacity nationwide and metro networks and broadband wireless capabilities, XO offers customers a broad range of managed voice, data and IP services with proven performance, scalability and value in more than 75 metropolitan markets across the United States. For more information, visit www.xo.com.

Media Contacts:
Chad Couser/XO Communications
703-547-2746
chad.couser@xo.com

Chris Roche
Brodeur (for XO Communications)
202-775-2675
croche@brodeur.com