作为美国地区第二大的运营商，AT&T的4G LTE能够比现有的3G网络速度快10倍，同时公司已经投入了1150亿美元对现有的网络线路进行升级改造，预计将于5年内完成对全美地区的4G网络覆盖。
- Anchorage, Alaska
- Bakersfield, Calif.
- Bridgeport, Conn.
- Jacksonville, Fla.
- Modesto, Calif.
- North Montgomery County, Md.
- Northern New Jersey
- Omaha, Neb.
- Syracuse, N.Y.
- Albany, N.Y.
- Albuquerque, N.M.
- Allentown, Penn.
- Birmingham, Ala.
- Boise, Idaho
- Charleston, S.C.
- Cincinnati, Ohio
- Columbia, S.C.
- Columbus, Ohio
- Detroit, Mich.
- Denver-Boulder, Colo.
- El Paso, Tex.
- Fayetteville, N.C.
- Ft. Myers, Fla.
- Gary, Ind.
- Grand Rapids, Mich.
- Green Bay, Wis.
- Harrisburg, Pa.
- Hartford, Conn.
- Hawaii
- Knoxville, Tenn.
- Lancaster, Pa.
- Little Rock, Ark.
- Louisville, Ken.
- Milwaukee, Wis.
- Minneapolis-St. Paul, Minn.
- Memphis, Tenn.
- Nashua, N.H.
- New Haven, Conn.
- Philadelphia, Penn.
- Pittsburgh, Penn.
- Portland, Ore.
- Providence, R.I.
- Reading, Pa.
- Rochester, N.Y.
- Sacramento, Calif.
- Salinas-Seaside-Monterey, Calif.
- Seattle, Wash.
- Springfield, Mass.
- Toledo, Ohio
- Tucson, Ariz.
- Tulsa, Okla.
- Wilkes-Barre, Penn.
- Wilmington, Del.