What is the beginning of the social security number of rural credit cooperatives?

The social security card of rural credit cooperatives is also the bank card of rural credit cooperatives. Because the social security card contains financial and social security functions, the social security card number of rural credit cooperatives starts with 62 14, and the serial number varies from place to place. For example, Deyang's social security card number is 62 145905, Mianyang's is 62 145906, and so on.