Sierra Wireless Inc. reported preliminary consolidated earnings results for the fourth quarter and full year of 2012. For the fourth quarter, the company's revenues were $109 million, respectively, including $14.0 million in revenue from the sale of AirPrime embedded wireless modules to Mobile Computing customers. Non-GAAP gross margin for the retained business was 33.2% in the fourth quarter of 2012.

For the full year 2012, the company's revenues were $397 million, including $61.1 million in revenue from the sale of AirPrime embedded wireless modules to Mobile Computing customers. Non-GAAP gross margin for the retained business was 31.6% for the full year. Non-GAAP earnings from operations for the retained business were modestly positive in the fourth quarter, showing a steady improvement throughout the year.

The company reaffirmed revenue guidance for the fourth quarter and preliminary revenue guidance for the full year of 2012. The company expects consolidated fourth quarter 2012 results to be solidly in line with guidance provided on November 1, 2012.

For the full year, the company expects preliminary revenue to be $644 million.