au

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About au

KDDI Corporation, operating under the “au” brand, is a major mobile network operator in Japan. Identifying uniquely within the global telecommunications landscape with its Mobile Country Code (MCC) of 440 and Mobile Network Code (MNC) of 74, au provides a wide array of mobile services, covering much of the country. As one of the leading players in the competitive Japanese mobile market, alongside NTT Docomo and SoftBank, KDDI au has been instrumental in pioneering advanced mobile technologies and services for consumers and businesses. With a reputation that is built upon a solid and reliably efficient network, combined with innovative services, this has positioned au as a network of choice for the tech savy and quality conscientious user base. From its early adoption of 3G to its current roll-out of cutting-edge 5G technology, KDDI au has constantly evolved to meet new consumers demands. Compared to its competitors, au is particularly perceived as being innovative in terms of integrating content and e-commerce services, which often enhances the ecosystem surrounding its core connectivity offerings. This commitment to innovation, combined with its coverage footprint across Japan, makes KDDI au an important element of the Asia & Middle East regional, and global, telecommunications infrastructure. The MCC 440 and MNC 74 assigned to KDDI au is not just an identifier, but a mark which reflects its contribution to the mobile communication field within Japan.

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