China Shaanxi Unicom

China Unicom (Hong Kong) Limited is a Chinese state-owned telecommunications operator of China and was incorporated in Hong Kong in fevereiro de 2000. Started as a wireless paging and GSM mobile operator, it currently provides a wide range of services including nationwide GSM mobile network, long-distance, local calling, data communication, Internet services, and IP telephony in mainland China, and has operated a CDMA network in Macau since 18 de outubro de 2006. As of the end of abril de 2008, the company had 125 million GSM subscribers and 43 million CDMA subscribers.

https://www.chinaunicom.com.hk