PhoneBang is a brand established by Beijing Yule Innovation Technology Co., Ltd. in 2012, which mainly provides users with accurate number information service. At present, PhoneBang has reached strategic cooperation with many cell phone manufacturers, including: Xiaomi, ZTE, Huawei, Samsung, Jinli, TCL and other brands. The creation of PhoneBang is to construct a telephone ecosystem covering financial services, brand marketing, market forecasting, user analysis and other areas of big data core.