How to check the mobile phone number of several years? How to check the mobile phone number and how long?

1. Open the main interface of the mobile phone, open the corresponding mobile phone number official website, click the online business hall option, log in for SMS authentication, and click the personal center button to check the usage time and account opening date of the mobile phone number, and you can know the specific usage time of your mobile phone number by checking the network age.

2. Click on the phone application in the phone interface, and enter the corresponding number in the dialing interface for inquiry. Unicom users dial 10 100, mobile users dial 10086, and telecom users dial 10000, and then enter the corresponding information according to the voice prompts to view.

3. If you are close to the mobile phone number business hall, you can also go to the corresponding mobile phone number business hall and ask the service staff about the use time of the mobile phone number, and the service staff will inform you after asking.