The social security card has been activated, but the invalid card number is displayed.

Legal analysis: 1. After the medical insurance card is activated, if you have not paid medical insurance before, you can use it next month 15;

2. If the payment has been made before and the interruption has not exceeded 3 months, 15 can also be used next month after the payment is activated;

3. If the payment has been made before and the interruption is more than 3 months, there will be a waiting period of 6 months before it can be used;

Legal basis: People's Republic of China (PRC) Social Insurance Law.

Article 4 Employers and individuals in People's Republic of China (PRC) shall pay social insurance premiums according to law, and have the right to inquire about payment records and personal rights and interests records, and ask social insurance agencies to provide social insurance consultation and other related services.

Individuals enjoy social insurance benefits according to law and have the right to supervise the payment of their own units.

Fifth people's governments at or above the county level shall incorporate social insurance into the national economic and social development plan.

The state raises social insurance funds through multiple channels. People's governments at or above the county level shall give necessary financial support to social insurance.

The state supports social insurance through preferential tax policies.