Can the reserved mobile phone number of social security card be changed online?

Of course. The reserved mobile phone number of social security card refers to the mobile phone number information of the insured left on the social security card, which can be modified online. The change steps are as follows:

1. Open Alipay, click More, click Citizen Center, and click Social Security.

2. You can see "Social Security Card Service" on the sliding page, and you can find the change of social security card information under "Social Security Card Service". Click "Change of Social Security Card Information", and the page will prompt "Provide online modification service for reserved mobile phone number and contact address", and check the consent form below.

3. Click "Go to Work". After face recognition verification, enter the old mobile phone number in the mobile phone number, then enter the new mobile phone number, receive the verification code of the new mobile phone number, and then click "Submit" to modify it successfully.