att logoAT&T announced Wednesday a more than 20 percent increase to the typical download speeds across its 3G wireless network and a 50 percent increase to typical upload speeds.

Users can expect to see download speeds between 700 kilobits per second and 1.7 megabits per second, up from 600 kilobits per second to 1.4 megabits per second. Upload speeds should increase from 500 kilobits per second to 1.2 megabits per second, up from 500 to 800 kilobits per second on average.

AT&T says its 3G mobile network is available in more than 275 major U.S. metropolitan areas, adding that later this month it will become the first U.S. carrier to have fully deployed High Speed Packet Access (HSPA) technology across its entire 3G network. The company also stated that it plans to offer 3G service in nearly 350 major metropolitan U.S. areas by the end of 2008.