(Telecompaper) Telefonica is evaluating the sale of its data centre business with a view to cutting down its debt pile, according to unnamed sources cited by Bloomberg. The company has hired financial advisers and is currently in the process of gauging interest from potential buyers including data centre specialist firms as well as infrastructure and private-equity funds, said the sources, adding that the sale could earn the Spanish group EUR 500 million to EUR 1 billion, depending on the assets included.