The social security card was originally for mobile phones.

The phone number reserved by the social security card is no longer needed. There are two ways to modify the reserved telephone number of social security card:

First, online changes:

1. Open WeChat and click "Pay" on the "Me" page;

2. Enter the payment "page" and click "City Service";

3. Click Social Security;

4. Select "Social Security Service";

5. Find the social security card, and click "Modify the mobile phone number of social security card" below;

6. Enter the new mobile phone number and click "Modify".

II. Changes in social security centers:

1. Bring my original ID card and social security card to the local social security bureau;

2. Handle the insurance information change business at the front desk window;

3. carry out identity card authentication;

4, according to the requirements of the window staff.

Social security cards can query personal information, so you need to reserve your mobile phone number when you apply for social security cards, and you can verify your identity by receiving and verifying short messages when you query information.

The mobile phone number reservation of social security card refers to leaving the mobile phone number information of the insured person on the social security card. The purpose of this is to facilitate the insured to receive timely notices and reminders about social security policies and business when handling social security business. At the same time, it is also convenient for social security institutions to contact the insured in time when necessary. The mobile phone number of the social security card is reserved by the insured person when applying for the social security card. Insured persons need to actively provide mobile phone number information when handling social security cards, and sign relevant agreements, agreeing to reserve their mobile phone numbers on social security cards. After the mobile phone number is reserved in the social security card, the insured person needs to update and maintain his mobile phone number information in time to avoid inaccurate information or inability to contact in time.

The social security card includes the following items:

1, basic old-age insurance; In order to support the elderly, workers can receive pensions when they reach the legal retirement age;

2. Basic medical insurance; Illness is used for medical reimbursement;

3. Work injury insurance; Is an employee injured at work, paying medical expenses or compensating for related work-related injuries;

4. Unemployment insurance; After the employee loses his job, he receives living expenses;

5. Maternity insurance; It is a kind of maternity reimbursement and related treatment for employees.

To sum up, the mobile phone number of social security card is reserved by the insured voluntarily, not compulsory. If the insured person is unwilling to leave the mobile phone number information on the social security card, he can also choose not to fill in or fill in false information. However, if the insured does not provide mobile phone number information, they will not be able to enjoy the timely notification and reminder service brought by the social security card, and may also affect the handling and inquiry of social security business.

Legal basis:

People's Republic of China (PRC) social insurance law

Article 64

Social insurance funds include basic endowment insurance fund, basic medical insurance fund, industrial injury insurance fund, unemployment insurance fund and maternity insurance fund. In addition to the basic medical insurance fund and maternity insurance fund combined accounting, other social insurance funds are accounted for separately according to social insurance types. Social insurance funds implement a unified accounting system throughout the country.

The social insurance fund is earmarked for special purposes, and no organization or individual may occupy or misappropriate it.