Research firm Kantar Worldpanel ComTech claims that the iPhone 5's launch sales helped the Cupertino firm to a 48.1% of the market compared to its rival's 46.7%.
The last time Apple edged out Android in the US was just after the launch of the previous generation iPhone 4S. It held a marketshare majority for three consecutive periods before Android reclaimed the lead.
Kantar also attributed the figures to customer loyalty, claiming that 92% of iPhone owners will upgrade to the next model in the range.
Android's dominance in Europe remains prevalent, with analysts' figures suggesting Google's operating system accounts for 73.9% of smartphone sales in Germany and 81.7% of Spanish sales.
The report follows a separate study by market analyst IDC, which appeared to confirm that Android handsets made up 75% of all global smartphone sales in the third quarter of 2012, leaving a 14.9% stake for Apple.
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