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AT&T and T-Mobile create biggest US firm in $39bn deal

21 March 2011 Last updated at 19:07 GMT

Deutsche Telekom has sold T-Mobile USA to rival AT&T for $39bn, creating the largest US wireless network. The deal sent Deutsche Telekom shares surging.

They opened 16.3% higher - a record jump - and closed 11% up. In New York, AT&T shares gained 1.3%. The deal still needs approval from regulators

The BBC's Julia Caesar reports.