Personal Finance: Name that company

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The Independent Online
This company has been setting up fibre-optic networks in the major European centres since 1993, delivering data and communications services to businesses. It has a dual listing on the London Stock Exchange and the Nasdaq (in the United States) and the last year has seen its share price rocket. What is it called?

Answers to or snail mail to Foolish Trivia Quiz, Independent on Sunday, One Canada Square, London E14 5DL.

Last week's answer: Rupert Murdoch is a US citizen and owns the LA Dodgers.