What if there is no social security number in American att business?

Without SSN, it is impossible to buy prepaid mobile phones in America. You can only use prepaid or deposit to handle business at ATT.

SSN is the abbreviation of social security number, which translates to "social security number", which is the nine digits on the American social security card. SSN was originally used to track individual's tax payment, but now its use has been expanded to include distinguishing individual's identity, similar to the function of "resident ID number" in China. The social security number is generally written in the form of "3 digits -2 digits -4 digits" like 450- 12-3672.

To apply for SSN, you should fill in the social security number application form (form SS-5) at the nearby Social Security Bureau office. You must bring all the original documents and identification when applying. The Social Security Bureau does not accept any copies. If a foreigner receives a work permit card issued by the Immigration Bureau, he should bring not only the card itself, but also the letter sent by the Immigration Bureau and the envelope stamped with the postmark. Otherwise, the time to get the social security card will be greatly delayed, because the social security bureau has to check with the immigration bureau. Applications can be submitted by mail or in person. Suggest that I go to the social security bureau myself. The social security card application form and the office address of the Social Security Bureau can be found on the network of the Social Security Bureau of the United States, Monday to Friday, from 7 am to 7 pm.