What if the mobile phone number bound by the social security card is cancelled?

Legal analysis: When the cardholder's name and ID number are changed, he/she must change his/her personal information at the human resources and social security agency in time, and then change the card according to the cancellation and new application procedures. When the cardholder's personal information of non-social security cards such as mailing address and contact telephone number changes, he should go to the social security card service institution in time, or change the personal information of social security application through consulting service telephone, self-service terminal and social security card service website. Changes in personal information of non-social security cards in bank accounts shall be handled in accordance with the relevant regulations of social security card service banks.

Legal basis: Article 57 of the Social Insurance Law of People's Republic of China (PRC), the employing unit shall, within 30 days from its establishment, apply to the local social insurance agency for social insurance registration with its business license, registration certificate or unit seal. The social insurance agency shall, within fifteen days from the date of receiving the application, examine and issue the social insurance registration certificate.

Where the social insurance registration items of the employing unit are changed or the employing unit is terminated according to law, it shall, within 30 days from the date of change or termination, go to the social insurance agency to handle the change or cancellation of social insurance registration.

The market supervision and management department, the civil affairs department and the organization management organ shall promptly inform the social insurance agency of the establishment and termination of the employing unit, and the public security organ shall promptly inform the social insurance agency of the birth, death, household registration, migration and cancellation of the individual.