AT&T was ranked the highest for combined voice, data, and text performance in Columbus, Ohio according to an independent study conducted by RootMetrics in May 2013. This was the second consecutive study where AT&T received the top ranking in Columbus. AT&T launched its 4G LTE network in Columbus in November 2012 and plans to expand nationwide coverage to 300 million people by the end of 2014. A company president commented that customers have been impressed by the speeds and quality of AT&T's 4G LTE network, backed by the RootMetrics results.