XO (now Verizon)
XO Communications owns and operates one of the largest Ethernet and IP networks in the US that customers rely on for their domestic and international communications. The XO network is among the most connected networks in North America, with the ability to scale up to terabits of capacity to help you future-proof bandwidth needs. From wide area networking for all of your voice, data and business applications to connections to leading cloud service providers, and from Hosted Unified Communications and VoIP to network security and performance, XO has the solutions you need to solve your most important challenges. Over the years, leading industry analyst firms and business publications have consistently recognized XO for innovative services, solutions and IT leadership. XO is among the leading providers of VoIP, SIP Trunking, Ethernet and MPLS IP-VPN services in the communications industry.