Level 3 Communications was an American multinational telecommunications and Internet service provider company headquartered in Broomfield, Colorado. Level 3 operated a Tier 1 network. The company provided core transport, IP, voice, video, and content delivery for medium-to-large Internet carriers in North America, Latin America, Europe, and selected cities in Asia. Level 3 was also the largest competitive local exchange carrier (CLEC) and the 3rd largest provider of fiber-optic internet access (based on coverage) in the United States.
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