AT&T expanded its Gigapower Internet service, which offers residential broadband speeds up to 1 Gbps, in the following areas:
Chicago: Hampshire, Munster and St. John
Dallas: Richardson
Houston: Friendswood, Pearland, Manvel and Missouri City
Miami: Coral Springs, North Miami and Tamarac
San Antonio: Converse
http://about.att.com/newsroom/ultrafast_gigabit_internet_speeds_march_2016.html