AT&T Mobility

AT&T Mobility, LLC, also known as AT&T Wireless and marketed as simply AT&T, is an American telecommunications company. Formed in April 2000 as Cingular Wireless LLC, It is a wholly owned subsidiary of AT&T Inc. and provides wireless services in the United States. AT&T Mobility is the third largest wireless carrier in the United States, with 120.1 million subscribers as of December 31, 2025.

The company is headquartered in Brookhaven, Georgia. Originally known as Cingular Wireless (a joint venture between SBC Communications and BellSouth) from 2000 to 2007, the company acquired the old AT&T Wireless in 2004; SBC later acquired the original AT&T and adopted its name. Cingular became wholly owned by AT&T in December 2006 as a result of AT&T's acquisition of BellSouth.

In January 2007, Cingular confirmed it would rebrand itself under the AT&T name. Although the legal corporate name change occurred immediately, for both regulatory and brand-awareness reasons both brands were used in the company's signage and advertising during a transition period. The transition concluded in late June, just prior to the rollout of the Apple iPhone.

On March 20, 2011, AT&T Mobility announced its intention to acquire T-Mobile US from Deutsche Telekom for $39 billion. If it had received government and regulatory approval, AT&T would have had more than 130 million subscribers. However, the U.S. Department of Justice, the Federal Communications Commission (FCC), and AT&T Mobility's competitors (such as Sprint Corporation) opposed the move on the grounds that it would substantially reduce competition in the cellular network market. In December 2011, in the face of both governmental and widespread consumer opposition, AT&T withdrew its offer to complete the merger.

AT&T offers three tiers of its Unlimited Your Way plan, AT&T Unlimited Premium PL, AT&T Unlimited Extra EL, and AT&T Unlimited Starter SL. Customers can also choose from either the AT&T Value Plus VL, or AT&T 4 GB plans. All plans come with unlimited talk and text, with unlimited data on all except the AT&T 4 GB plan. The higher tier plans include premium data that offers superior service, up to the allotted limit on each line during a bill cycle, plus other features like Mobile Hotspot and more. The AT&T Unlimited Premium® PL plan also includes unlimited talk, text, and data in 20 Latin American countries including the Dominican Republic, included at no extra charge. As of January 8, 2016, AT&T no longer offers two-year contracts for subsidized smartphones on consumer accounts. Customers who currently have two-year contracts are grandfathered until they upgrade to a new device, in which case they will have to choose from AT&T's NEXT installment plans for smartphones. Unlimited data plans may be throttled based on the terms of the plan.

AT&T also allows existing customers to stay on legacy right plans; however, reserves the right to terminate or require a plan change per its terms of service.

Within AT&T's 21-state landline footprint, other AT&T services are offered at the AT&T retail stores, including signing up for home phone, internet, and U-verse. AT&T stores outside of its footprint offer wireless services. AT&T also provides free-email services to its customers.

A large number of AT&T Mobility employees are unionized, belonging to the Communications Workers of America. The CWA represented roughly 15,000 of the previous 20,000 formerly AT&T Wireless employees as of early 2006. As of the end of 2009, the CWA website claims that roughly 40,000 workers of AT&T Mobility are represented by the union.