China Unicom

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

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About China Unicom

China Unicom (Hong Kong) Limited, operating as China Unicom in Hong Kong, is a major mobile network operator serving the region. Recognizable by its Mobile Country Code (MCC) of 454 and Mobile Network Code (MNC) of 07, China Unicom provides a range of mobile services, catering to both local residents and visitors. As a key player in Hong Kong's competitive telecom landscape, China Unicom is one of several networks, playing a vital role in connecting the city and wider Asian countries. Operating within Hong Kong's advanced telecommunications infrastructure, China Unicom offers 4G LTE and increasingly expansive 5G services. These enable not only standard telephone/data services but also support the cities growing smart technology applications. Compared with other operators in the region, such as CSL or SmarTone, China Unicom maintains a significant presence and ongoing investment into network technologies, driving advancements in mobile connectivity throughout the region. The company's presence is crucial to Hong Kong's status as a global communication hub, enabling businesses and individuals to remain connected locally and globally.

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