What is the verification code of China Tower?

SMS verification code. China Tower Co., Ltd., abbreviated as China Tower, is a large state-owned communication tower infrastructure service enterprise funded by China Mobile Communications Co., Ltd., China United Network Communications Co., Ltd., China Telecom Co., Ltd. and China Guo Xin Holdings Co., Ltd. under the background of implementing the strategy of "strengthening the country by network", deepening the reform of state-owned enterprises and promoting the sharing of telecom infrastructure resources. China Tower verification code is a short message verification code. The company is mainly engaged in the construction, maintenance and operation of supporting facilities of base stations such as communication towers, public network coverage of high-speed railways and subways, and large indoor distribution systems.