AT&T's Network Has Fastest 4G LTE Speeds -- DALLAS, March 11, 2013 /PRNewswire/ -- DALLAS, March 11, 2013 /PRNewswire/ -- AT&T* wireless customers in the carrier's 4G LTE markets** have access to the fastest mobile Internet speeds on their smartphones. How fast? RootMetrics®, an independent mobile analytics firm, has reported an average download speed of 18.6 Mbps and an average upload speed of 9.0 Mbps, based on recent testing. That means ultra-fast song downloads, faster photo sharing and app downloads, faster mobile Internet access - virtually everything you do with a smartphone, just easier and faster. In their LTE Performance Review released today, RootMetrics called AT&T's network "blazing-fast." According to the RootMetrics study, "AT&T easily offered the fastest pure LTE download speed of any carrier." The RootMetrics LTE March 11, 2013, Performance Review is based on more than 725,000 4G and 4G LTE data samples gathered from the top 77 U.S. markets during the second half of 2012. AT&T had officially deployed 4G LTE technology in 47 of those markets at the time they were tested. "There are more reasons than ever to choose AT&T," said John Donovan , senior vice president-AT&T Technology and Network Operations. Nationwide, we are continuing to expand 4G LTE and expect our deployment will cover 300 million people by year-end 2014. Over the past five years, AT&T invested nearly $98 billion into operations, more than any other public company in the U.S. Performance rankings are derived using data sampling and analysis methods that are subject to statistical variation. The results of the Report are not an endorsement of AT&T by RootMetrics. Wireless network performance is subject to a number of factors. Your experiences may vary. Visit www.rootmetrics.com for more details. 4G speeds not available everywhere. Limited 4G LTE availability in select markets. LTE is a trademark of ETSI. Learn more at att.com/network. Claim compares 4G download speeds to industry average 3G download speeds. Results of 2012 LTE Report are © RootMetrics 2013.