South of the border today, subscription satellite radio provider Sirius XM Radio announced that it added 583,249 net subscribers in the second quarter of 2010, compared to a net subscriber decline of 185,999 in the second quarter of 2009.

Year to date, Sirius XM has added 754,690 net subscribers compared to a loss of 590,421 net subscribers in the first half of 2009. 

The company ended the second quarter with 19,527,448 subscribers, an increase of more than 1.1 million subscribers from June 30, 2009.

"Our subscriber results mark the best quarter of gross additions, deactivations and net additions since the merger of SIRIUS and XM in July 2008. The strong execution in both adding subscribers and retaining them resulted in our record-high 19.5 million subscriber milestone, despite continued economic uncertainty," said Mel Karmazin, the Chief Executive Officer of SIRIUS XM.

The company now expects to add 1.1 million new subscribers in 2010.

The reported subscription numbers are for the U.S. operations of Sirius XM only and do not include XM Canada or Sirius Canada subscribers. In Canada, XM Canada and Sirius Canada combined have approximately 1.5 million paying subscribers.

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