China Unicom

The Tianjitong traffic card is an IoT card jointly developed by Huawei and China Unicom. It does not support voice or SMS functions. It can only be used with Huawei mobile routing equipment. It does not support Mobile phone use.

China United Network Communications Group Co., Ltd. ("China Unicom" for short) was formed on January 6, 2009 by the merger and reorganization of the original China Netcom and the original China Unicom. The company operates in 31 domestic provinces (autonomous regions, autonomous regions, Municipalities) and many overseas countries and regions, it has branches and more than 130 overseas business access points. It has a modern communication network and global customer service system covering the whole country and reaching the world. It mainly operates fixed communication business and mobile communication business. Domestic and international communication facility service business, data communication business, network access business, various telecommunications value-added services, system integration business related to communication information business, etc. As of 2022, the number of users will reach 460 million.