How long can I check the list of mobile phone records in China?

Detailed list query steps: 1. Log on to www. 10086.cn, and choose to enter Hebei Mobile Online Business Hall-My Mobile Phone-Query Function-Detailed List Query; 2. Enter the mobile phone number, service password and verification code to log in; 3. Select "Call Details" to inquire, and enter the random code of the short message received by the mobile phone according to the prompt to inquire. (If there is any change, the actual display on the website shall prevail. ) customers can query the detailed list of the last five months excluding the current month. Different provinces, cities and regions have different procedures, subject to 10086 real-time consultation.