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Carl Grivner was appointed chief executive officer of XO Communications on May 15 2003.
Mr. Grivner's career in telecommunications and technology spans more than 25 years. Formerly Mr. Grivner was chief operating officer at Global Crossing a position he held from February 2002 until April 2003. Mr. Grivner joined Global Crossing in June 2000 as executive vice president of global operations. Prior to joining Global Crossing Mr. Grivner was chief executive officer of Worldport Communications. He is also a former chief executive officer for the Western Hemisphere at Cable & Wireless. Additionally Mr. Grivner has held various senior executive positions at Advanced Fiber Communications. Early in his career he held various positions with Ameritech and IBM.
Mr. Grivner received a Bachelor of Arts from Lycoming College and served in the United States Marine Corps from 1975-1978.
He is a board member and vice chairman of CompTel the nation's largest association of facilities-based competitive telecommunications companies.
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