How to check your mobile phone number

If it refers to querying the local number:

For vivo mobile phones, you can enter the mobile phone settings--Mobile Network/Dual SIM and Mobile Network--SIM Card Information and Settings--Mobile/ China Unicom/Telecom/Radio and Television--SIM card number.

Some SIM cards do not display the number. You can call a friend, confirm the number, and then add the display yourself.

For more usage doubts, you can go to the vivo official website--My--Online Customer Service--Enter manual and consult online customer service for feedback.