Telecom, Mobile and China Unicom can be used by themselves.

China Telecom Group Co., Ltd. is a super-large state-owned communication enterprise in China and a global partner of the Shanghai World Expo. It has been selected as one of the "Top 5 Enterprises in the World" for many years, mainly engaged in comprehensive information services such as fixed telephone, mobile communication, satellite communication, Internet access and application.

The full name of p>CMCC is "China Mobile Communications Corporation", which is China Mobile Communications Group Company ("China Mobile" for short) and was established on April 2th, 2. It is a mobile communication operator based on GSM, TD-SCDMA and TD-LTE standard networks. China Mobile Communications Group Corporation is a state-owned backbone enterprise established on the basis of the overall divestiture of the original mobile communications assets of China Telecom according to the deployment and requirements of the state on the reform of the telecommunications system.

China United Network Communications Group Co., Ltd. (hereinafter referred to as "China Unicom") was formed on January 6, 29 on the basis of the merger of the former China Netcom and the former China Unicom. It has branches in 31 provinces (autonomous regions and municipalities directly under the Central Government) and many overseas countries and regions. It is the only telecom operator listed in new york, Hong Kong and Shanghai at the same time, and has been selected as one of the "Top 5 Enterprises in the World" for many years.