AT&T is continuing the roll out of their 4G LTE network in the US, and they have now rolled out the service to another 10 markets in the US, which you can see listed below.
– Marthas Vineyard, Massachusets
– Durant, Oklahoma
– Enid, Oklahoma
– Ardmore, Ada, Oklahoma
– Arkadelphia, Arkansas
– Russellville, Arkansas
– Ponca City, Oklahoma
– Charleston, West Virginia
– Cedartown, Georgia
– Rome, Georgia
AT&T are on track to reach 400 markets in the US by the end of the year, and they plan to have their 4G expansion completed by the middle of 2014.
Source Android Community