This document summarizes XO Communications, a communications services provider focused on businesses. In 3 sentences: XO has a nationwide fiber network covering over 75 cities with 19,000 route miles and 2.8 terabit transport capacity. It provides IP and networking solutions to over 90,000 business customers including half of the Fortune 500. XO generated $1.53 billion in revenue in 2010 and has 3,700 employees supporting customers through a dedicated account support team approach.