What is the number of Suzhou social security lock?

Social security five insurance will be deducted on the 5th of each month to15th. For the company's social security, online declaration and self-service payment are adopted. Under normal circumstances, the Social Security Bureau will lock the social security account of the corresponding company on 19 every month. That is, 19 is the demarcation point. Pay the social security fee for the current month before 19, and apply for social security for the next month after 19.