Six service providers were listed on Vertical Systems Group's 2010 Global Provider Ethernet Leaderboard.
In rank order by port share, they are Orange (France), Colt (UK), Verizon (US), NTT (Japan), AT&T (US) and Global Crossing (US).
Companies not on the Leaderboard list account for 47% of total Ethernet ports delivered by global providers in 2010.
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