Global Crossing Limited was a telecommunications company that provided computer networking services worldwide, and operated a tier 1 carrier. It maintained a large backbone and offered transit and peering links, VPN, leased lines, audio and video conferencing, long distance telephone, managed services, dialup, colocation and VoIP. Their customer base ranged from individuals to large enterprises and to other carriers, with main emphases on higher margin layered services like managed services and VoIP with leased lines. Its core network delivers services to more than 700 cities in more than 70 countries and six continents around the globe. - Source: Wikipedia
