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AT&T Mobility, operating in the United States of America (North America & Caribbean) under the brand AT&T, is a major mobile network provider facilitating connectivity across the vast landscapes of the country. Identified by the Mobile Country Code (MCC) 310 and Mobile Network Code (MNC) 150, AT&T plays a pivotal role in connecting millions of Americans. AT&T's network rivals that of Verizon and T-Mobile, offering a comprehensive suite of services, from basic voice and text to advanced 5G data connectivity. Originally a branch of the former Southwestern Bell Corporation, AT&T has evolved significantly over the years, adapting to the ever changing mobile landscape. With a substantial infrastructure footprint, AT&T aims to provide reliable mobile service to both urban and rural areas within the United States. This commitment to connectivity underscores the important role that mobile networks like AT&T play in modern communication and commerce within the USA, connecting the country and individuals from coast to coast.