au

MVNOs sell their own SIMs and plans but run on au's network rather than owning one.

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About au

KDDI Corporation, operating under the brand name "au," is a major mobile network operator in Japan, a country within the Asia & Middle East region. Identified by Mobile Country Code (MCC) 440 and Mobile Network Code (MNC) 75, au provides a wide range of telecommunications services to a large subscriber base. As one of the "big three" mobile carriers in Japan, alongside NTT Docomo and SoftBank, au is known for its innovative technology, competitive pricing, and extensive network coverage across the country. The network constantly evolves, and it also pushes the boundaries, so has introduced groundbreaking services and technologies to the Japanese market, contributing significantly to Japan's position as a global leader in mobile technology. Au's network infrastructure supports various technologies including 4G LTE and the latest 5G standards. The company operates an extensive range of stores nationwide for sales and support which are often easily identified. Its customer base covers both urban and rural demographics, offering plans and services tailored to different user needs, from individual consumers to large enterprises. While specific coverage details and technological advancements vary, customers will find that au often competes directly with NTT Docomo and SoftBank in terms of network performance, speed, and service offerings, particularly in densely populated areas. The company's commitment to technological innovation and customer satisfaction positions it as a key player in the competitive Japanese mobile market.

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