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AT&T Mobility, operating within the United States of America (North America & Caribbean), is a major mobile network provider identified by the Mobile Country Code (MCC) 312. This MCC places it firmly within the USA's telecommunications landscape. Paired with its Mobile Network Code (MNC) of 680, AT&T Mobility distinguishes itself within the crowded US market, offering a range of services from basic cellular connectivity to advanced 5G capabilities. They’re one of the "big three" alongside Verizon and T-Mobile, constantly vying for market share and technological superiority, including extensive 5G coverage. AT&T, formerly known as Cingular Wireless, has a long and storied history. Its network covers a vast swathe of the United States, offering access to millions of subscribers. The use of both MCC 312 and MNC 680 is crucial for devices to properly identify and connect to the AT&T Mobility network, ensuring seamless communication and data transmission across the country and while roaming. Compared to other networks, AT&T is known for its wide coverage area and focus on integrating mobile services with entertainment and media, aiming to provide users with a comprehensive connected experience.