How many numbers does a mobile phone have? Such as serial number, how to verify? Is there a charge for texting verification?

Any mobile phone licensed in Chinese mainland can be identified as parallel and licensed by entering *#06# code, but it must be registered in www.tenaa.com.cn for authentication ("Telecom Equipment Access/Authentication" belongs to the Ministry of Information Industry, and authentication is free).

The method is: type *#06# in the mobile phone, display the IMEI number and write it down; Take out the cell phone battery. There is a blue sign in the mobile phone, and three lines of numbers (license number, equipment model, scrambling code) are written on the sign. Open www.tenaa.com.cn, there is a sign verification. After entering, enter the written number according to the prompt. After verification, it will prompt whether the network access mark corresponds to the IMEI number, and give an authoritative conclusion. If not, you can take this conclusion to complain to the Consumers Association and claim compensation.