Carl Grivner, CEO of XO Communications, to Serve as Special Advisor to TelecomHUB Networking Organization.

WASHINGTON -- The TelecomHUB, the premier networking organization for senior telecom and industry-related professionals in the Washington, D.C., area, today announced that Carl J. Grivner, the Chief Executive Officer of XO Communications, a leading telecommunications service provider, has agreed to serve as Special Advisor to the TelecomHUB.

"We're honored that Carl Grivner has agreed to serve as Special Advisor to the TelecomHUB. He is one of the leaders in the telecommunications industry, and he possesses a visionary outlook of where telecom is headed. We anticipate that his role as an advisor will play a key role in our future," said Barry Toser, the President and co-founder of the TelecomHUB and the Senior Vice President & General Manager of Transaction Network Services' Telecom Services Division. In addition to assisting with the future planning and direction of the TelecomHUB, Mr. Grivner will also supply his recommendations on programming and content for the organization's events.

Mr. Toser also commented: "Carl's outstanding career in the telecommunications industry should prove invaluable in contributing to the growth of the TelecomHUB and the value we provide members and the local telecom community. We are very fortunate to have someone of his caliber for our first-ever Special Advisor position."

"I'm very honored to participate as an advisor to the TelecomHUB," said Carl Grivner, the Chief Executive Officer of XO Communications. "The TelecomHUB is an invaluable forum for professionals to exchange information about the latest issues and technologies in our industry. The telecommunications industry is undergoing rapid transformation, and there is no better place to see first-hand how various issues and technologies are changing our industry."

Mr. Grivner's career in telecom and technology spans more than 25 years. Prior to his current position as CEO of XO Communications, he served as chief operating officer at Global Crossing. Mr. Grivner also served as chief executive officer of Worldport Communications and Chief Executive Officer, Western Hemisphere, of Cable & Wireless PLC. Additionally, Mr. Grivner has held various senior executive positions at Advanced Fiber Communications and Ameritech. Mr. Grivner began his career working in sales at IBM. He also served in the United States Marine Corps from 1975-1978. He earned his Bachelor of Arts from Lycoming College.

XO Communications, headquartered in Reston, Virginia, is a leading provider of national and local telecommunications services to businesses, large enterprises and telecommunications companies. XO offers a complete portfolio of services, including local and long distance voice, dedicated Internet access, private networking, data transport, and Web hosting services as well as bundled voice and Internet solutions. XO provides these services over an advanced, national facilities-based IP network and serves more than 70 metropolitan markets across the United States. For more information, visit www.xo.com.

ABOUT THE TELECOMHUB

The TelecomHUB, founded in 1999, provides a high quality forum for information exchange, education and networking. It is the premier networking organization for senior telecom and industry-related professionals in the Washington, D.C. area. The HUB's goal is to bring people together and create a network that assists both individuals and companies in staying ahead of the industry curve. For more information, visit http://www.TelecomHUB.org.