[2/28/07] Sirius Satellite Radio reported record revenue of $637.2 million in 2006, up from revenue of $242.2 million in 2005, the company announced Feb. 27.

For the first time, in the 2006 fourth quarter the satellite operator achieved positive free cash flow, though the company lost $1.1 billion for the year.

Sirius closed 2006 with a total subscriber base of 6 million, up 82 percent from the end of 2005. Average monthly revenue per subscriber was $11.01 in 2006, up from $10.34 in 2005, while subscriber acquisition cost per gross subscriber addition was $114 in 2006, down from $139 a year ago.

Sirius is forecasting its revenues to approach $1 billion in 2007, while projecting that it will close the year with more than 8 million subscribers.

The company also hopes to complete its merger with rival XM Satellite Radio, announced Feb. 18, before the end of the year.