The study was conducted by comScore’s MobiLens service, which reports on key trends in the U.S. smartphone industry and fielded 1,176 surveys for a total of 3.124 million respondents. The data reflects the three month average period ending February 2013.
According to the report, 133.7 million people in the U.S. owned smartphones during that time, equivalent to a 57 percent mobile market penetration, which is up eight percent since November.
Apple is the top original equipment manufacturer (OEM) with 38.9 percent of U.S. smartphone subscribers. Apple’s numbers are up 3.9 percentage points from November. Samsung is second with a 21.3 percent share, up 1 percentage point. HTC (9.3 percent), Motorola (8.4 percent) and LG (6.8 percent) round out the data and were all down in shares compared to the November statistics.
In terms of smartphone platform market shares, Google Android holds the majority of the market with 51.7 percent of smartphone subscribers using its platform, which is down two percentage points from November. Apple is on the rise, up 3.9 percentage points at 38.9 percent share. BlackBerry holds 5.4 percent, down 1.9 percentage points, and Microsoft has a 3.2 percent share, up a slight .2 percentage points.