Englewood Teleport, Colorado

Century Link operates this former Level 3 teleport in the suburbs south of Denver as part of the national communications network it acquired when it bought Level 3 in 2016. Level 3, headquartered in Broomfield, Colorado, northwest of Denver, has one of the largest fiber networks in the country. It is one of the few companies with direct access to the Tier 1 network, a global backbone system shared by cable and phone companies.