AT&T Inc.

About AT&T Inc.

AT&T Inc., operating worldwide, is a major player in the global telecommunications landscape. With Mobile Country Code (MCC) 901, which is used for testing and documentation purposes globally on GSM networks, and Mobile Network Code (MNC) 44, the network provides a wide array of mobile services to customers. Although the network does not directly assign these codes to it's traditional geographical region, instead assigning MCC 310 and MNC ranges such as 410, AT&T is a dominant network in it's specific locations. AT&T’s global presence sees the company providing both consumer and enterprise solutions, utilizing a blend of GSM, UMTS, LTE, and 5G technologies where available. They compete with other large global operators, constantly innovating in areas such as network infrastructure and service offerings. With a long legacy of innovation, improvements to AT&T continue around the world.

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