AT&T is a telecommunications company that is headquartered in Dallas, Texas, United States. It was founded on October 5, 1983, as Southwestern Bell Corporation, and later merged with AT&T Corporation in 2005, adopting its iconic name and logo. AT&T's headquarters, known as the AT&T Corporate Center, is located in downtown Dallas.

AT&T provides a wide range of products and services, including wireless communication, high-speed internet, digital television services, and digital home phone services. They also offer business solutions such as cloud storage, cybersecurity, and network services. AT&T operates in both the consumer and business markets, serving millions of customers across the United States.

On a global scale, AT&T operates in over 200 countries through its subsidiaries, partnerships, and joint ventures. One notable subsidiary is WarnerMedia, a leading media and entertainment company that includes Warner Bros., HBO, and Turner Broadcasting. AT&T also has partnerships with various international carriers, allowing their customers to access services seamlessly when traveling abroad.

In terms of market position, AT&T is one of the largest telecommunications companies in the world. It consistently ranks among the top companies in terms of global sales and customer base. However, in recent years, AT&T has faced increasing competition from other telecommunications giants like Verizon, T-Mobile, and Sprint.

Over the years, AT&T has gone through several major events and changes in its brand strategy. In 2020, the company announced a strategic shift towards focusing on its core connectivity business and divesting non-core assets. This included the spin-off of its DirecTV business and consolidation of WarnerMedia with Discovery Inc.

Currently, AT&T operates as a major player in the telecommunications industry, providing essential communication services to millions of customers. As of the latest updates, the company continues to expand its 5G network and invest in new technologies to enhance its offerings. With its strong presence and customer base, AT&T remains a key player in the global telecommunications market