MetroPCS Communications
MetroPCS now provides 4G LTE services in six metropolitan areas, including Dallas-Fort Worth, Detroit, Las Vegas, Los Angeles, San Francisco and Philadelphia. MetroPCS has plans to expand its 4G services into more major metropolitan areas later this year and into early 2011, including Atlanta, Boston, Jacksonville, Miami, New York, Orlando, Sacramento and Tampa.
http://www.metropcs.com/plans