[header] How to verify a social security number [title] Find and use an authorized ssa agent on the internet such as idvalidation http: // www.idvalidation.com/services. Asp? Service=1 to avoid direct ssa enrollment. [step] You must be an employer with a valid employer identification number (ein). In order to get an ein, you need to contact the irs. 
[title] Or enroll with the ssa by meeting the eligibility criteria for using cbsv. [step] This is federal form ssa-200.