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AT&T Mobility, operating in the United States of America and serving the North America & Caribbean region, is a major player in the country's mobile network landscape. Identified by the Mobile Country Code (MCC) 311, signifying its US origin, and Mobile Network Code (MNC) 70, AT&T provides a wide range of wireless communication services to millions of subscribers, making it one of the largest mobile carriers in the US alongside Verizon and T-Mobile. From its roots tracing back to Southwestern Bell, AT&T has evolved through mergers and acquisitions to become a telecommunications giant. Known for its robust network infrastructure, including significant investments in 5G technology, AT&T aims to provide extensive coverage and high-speed data access. Consumers often recognize AT&T for its diverse range of plans, bundled offerings with television and internet services, and its widespread retail presence. As network technology standards arise, AT&T will play a vital role in helping provide mobile access via towers, and infrastructure.