AT&T is a telecommunications service provider that operates on a national scale, offering a wide range of communication and entertainment services to customers across the United States. As a private company, AT&T is not a service provided directly by a city or municipality. Instead, it operates independently, competing with other service providers in the market. AT&T provides various services such as wireless phone plans, internet connectivity, digital television, and home phone services. Through its extensive infrastructure and network, AT&T ensures that individuals, households, and businesses can access reliable and efficient communication services, bridging gaps in connectivity and enabling people to stay connected in today's interconnected world.