A.G. claims AT&T charged Connecticut customers millions for the use of its logo on buildings and bills.
AT&T is introducing its 4G LTE network in San Francisco this week.
Thursday the cellular provider announced that it was introducing the faster data network in 11 new markets, including San Francisco.
"We're building a 4G LTE network that's blazing fast, and we offer dual layers of 4G technologies to provide customers with a more consistent speed experience," John Stankey, AT&T president and chief executive officer of business solutions, said in a statement. "Our network, together with our unsurpassed 4G device portfolio and innovative applications, will give our customers an industry-leading mobile broadband experience."
The new network will be available in San Francisco, Athens; Atlanta; Baltimore; Boston; Charlotte; Chicago; Dallas-Fort Worth; Houston; Indianapolis; Kansas City; Las Vegas; Oklahoma City; San Antonio; San Juan, Puerto Rico; and Washington, D.C.
AT&T said it hopes to have its full 4G LTE network up and running across the country by the end of 2013.