XO Communications Selects Nth Orbit to Manage Sarbanes-Oxley Compliance Initiative.

Business Editors/High-Tech Writers

SAN JOSE, Calif.--(BUSINESS WIRE)--April 20, 2004

Certus Software Gives Broadband Service Provider Cost-Effective

Project Oversight and Management

Nth Orbit, Inc., the leading provider of Sarbanes-Oxley conformance and controls solutions today announced that XO Communications, Inc. (OTCBB:XOCM.OB), one of the nation's leading providers of broadband telecommunications services, has selected Nth Orbit's Certus(TM) software solution to drive the company's Sarbanes-Oxley compliance initiative. Certus will provide XO with a single repository for all its documentation and process controls, enabling it to easily view, access and manage all its financial, operating and business processes and controls from a single vantage point. This single resource will enable XO to manage its entire SOX initiative more efficiently, and reduce the costs, time and resources required to achieve sign-off and sustained compliance.

Certus is a comprehensive compliance platform specifically designed to help organizations achieve Sarbanes-Oxley 404 sign-off in a true, sustainable way. Aligned with the COSO framework, Certus supports all the major solution components required by compliance -- content management, process management, project management and communication management -- in a secure, reliable and scalable manner. Its rapid implementation, ease-of-use and ability to leverage existing processes enables organizations to integrate Certus quickly into existing environments and realize immediate, significant business value. Certus fully supports complex business topographies including multi-national and multi-divisional organizations. It provides clear visibility at every organizational level that allows management to certify with confidence. Certus minimizes the cost of conformance while maximizing performance value.

"XO Communication has a total commitment to best practices, and we are always seeking more effective ways to reduce costs and improve business efficiencies," said Joe Barone, Executive Director of Internal Audit at XO Communications. "Out of all the Sarbanes-Oxley software products we evaluated, Certus provides us with the best opportunity to systemize our compliance effort in an effective and efficient manner while also helping us reduce the costs and resources required for management's certification and sustained compliance."

"Smart companies like XO Communications are relying on Certus to help them control their conformance-related costs and provide significant, lasting business value," said Vani Kola, President and CEO, Nth Orbit. "By choosing Certus, XO will be able to identify and introduce improved business practices as it works its way towards achieving 404 sign-off with certainty and confidence."

About XO Communications

XO Communications is a leading broadband telecommunications services provider offering a complete portfolio of telecommunications services, including: local and long distance voice, Internet access, Virtual Private Networking (VPN), Ethernet, Wavelength, Web Hosting and Integrated voice and data services. XO has assembled an unrivaled set of facilities-based broadband networks and Tier One Internet peering relationships in the United States. XO currently offers facilities-based broadband telecommunications services within and between more than 70 markets throughout the United States.

About Nth Orbit

Nth Orbit is the leading provider of Sarbanes-Oxley conformance and controls solutions. Its Certus software is recognized as the leading enterprise solution for sustainable SOX 404 compliance that allows executives to certify with confidence. Backed by an executive team, a board of directors and advisors that bring deep domain knowledge, Nth Orbit promises product excellence, commitment to customer success and superior thought-leadership. Nth Orbit's growing list of successful customers include AVX, AXT, Conexant, Great-West Life & Annuity Insurance Company, The Greenbrier Companies, Mindspeed, PepsiCo, The Pepsi Bottling Group, PepsiAmericas, Polaroid, South Jersey Industries, Suntron, Tarrant Apparel Group and XO Communications. To learn more about Nth Orbit or Certus, visit www.nthorbit.com.

Nth Orbit sponsors "FrontLines: A SOX Leadership Forum" to advance governance practices by enabling discussions on current topics with practice and industry leaders. FrontLines is a resource available to customers, partners, the media and the industry-at-large. To learn more about the FrontLines SOX Leadership Forum visit www.nthorbit.com/FrontLines.

Certus is a trademark, and FrontLines is a service mark of Nth Orbit, Inc. All other products or company names mentioned are used for identification purposes only, and may be trademarks of their respective owners.