Google's Android remains the dominant platform.
For the first time in the history of comScore's MobiLens U.S. mobile market share report, Apple has been ranked second place in the overall OEM (original equipment manufacturer) market.
Apple saw its U.S. market share increase by 1.5 percent from 16.3 to 17.8 percent in the three-month period ending during October, 2012. Samsung also experienced growth to continue its top spot reign, but it was by just 0.7 percent from 25.6 to 26.3 percent.
Apple jumped to second place in the chart, while LG experienced a decrease of 0.8 percent from 18.4 to 17.6 percent. Motorola and HTC, who rounded out the top five, both saw slight decreases with an overall 11 and 6 percent share of the market, respectively.
Nearly 52 percent of all subscribers in the U.S. are on smartphones, an increase of 6 percent from the previous quarter, which would suggest that the iPhone 5 helped Apple push itself into second place.
As for platform market share, Google remains dominant; the search engine giant saw Android increase its share from 52.2 percent of subscribers to 53.6 percent. Apple gained 0.9 percent, while BlackBerry creator RIM had its share decrease by 1.7 percent.