Lexis Advance

  • Legal research made faster and easier. Easily get more relevant results from leading legal industry sources delivered efficiently through cutting-edge online technology.

    Access the Lexis Advance® Support site to make the most of your Lexis Advance subscription.

Lexis® for Microsoft® Office

  • The comprehensive research and drafting tool right within the programs you use every day.

LexisNexis® Digital Library

  • Open the doors to your law library 24/7 with mobile access to primary law, deskbooks, code books, treatises and more.

Zimmerman's Research Guide


Social Security Numbers

Applying for a number: You apply for a Social Security Number by filing an SS-5 form with the Social Security Administration. The Social Security Administration's posts SS-5 forms .

Finding Social Security Numbers: If you have a person's name, you might be able to look up his or her social security numbers using Accurint, TLO, KnowX and/or LocatePlus. However, you should probably check with the company first, because the number will probably be masked for privacy purposes. The database vendors may be willing to unmask the data for certain businesses (e.g. collections firm).

If the person might have died, search the Social Security Death Index on Ancestry.com.

Other places to find social security numbers: court records, death records and professional licensing records. You might also be able to get a social security number by hiring a private investigator.

Validating a Number: If you have a social security number, the SSN Validator will tell you whether that number was actually issued and, if it was, where and approximately when, and possibly whether there is a related death record. You could also register and use the government's official Social Security Number Verification Service, or you could run the number through the databases discussed in the entry for "Finding People."

See Also
Finding People
Employer Identification Numbers
Social Security

For comments, questions and suggestions, email the author
Copyright 2015 Andrew Zimmerman