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Level 3 Biggest Ethernet Gainer as AT&T, Verizon Lead the Pack
AT&T finds itself at the top of Vertical Systems Group's annual U.S. Business Ethernet Leaderboard. AT&T is followed on the list – ranked based on port share – in order, by Verizon, tw telecom, CenturyLink, Cox, Level 3, XO and Time Warner Cable. VSG calculated port share using the base of
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