CenturyLink (now Lumen) is the second largest U.S. communications provider to global enterprise customers. CentruyLink 's state-of-the-art, scalable, IP-centric network is one of the largest fiber footprints in the continental United States. It is capable of handling diverse applications from the simplest local and long-distance business application to the most complex and sophisticated networking solution with customers in more than 60 countries.