XO Communications is a leading nationwide provider of advanced IP communications, managed network and IT infrastructure services for business, large enterprise and wholesale customers. Our customers include more than half of the Fortune 500, in addition to leading cable, mobile wireless, and domestic and international telecommunications companies. XO offers a superior customer experience through our innovative data and IP solutions, our employees’ focus on customers, and the proven performance of our advanced network. XO Communications is acquired by Verizon Business.