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Okinawa Cellular Telephone, operating under the brand "au Okinawa Cellular," is a significant mobile network operator in Japan, specifically serving the Okinawa Prefecture. Identified by its Mobile Country Code (MCC) of 440 and Mobile Network Code (MNC) of 78, it distinguishes itself within Japan's competitive telecommunications market. While mainland Japan sees dominant players like NTT Docomo, KDDI (au), and SoftBank, au Okinawa Cellular holds a particularly important role in providing connectivity to the unique geographical region of Okinawa. The network infrastructure allows for a robust service offering, delivering mobile voice, data and other telecommunications products. As part of the KDDI group, au Okinawa Cellular benefits from the resources and expertise of one of Japan's leading telecommunications corporations. However, it also maintains a distinct regional focus, tailoring services and offerings to meet the specific needs of Okinawa's residents and businesses. The network actively participates in local community events and initiatives, demonstrating a commitment to Okinawa's economic and social development. Although operating within the broader context of the Japanese mobile landscape, with adherence to national regulations and standards, the regional emphasis of au Okinawa Cellular helps it connect uniquely with its local customer base.