Disclaimer

What a result on this website means, and what it does not mean.

Last updated 21 September 2026.

1. General information

SSN Validator (ssnvalidator.org) is an independent educational website. It applies published Social Security Number format and reservation rules. It is not a government service, not affiliated with the Social Security Administration or the Internal Revenue Service, and not a substitute for a tax professional or a lawyer.

The services on this website do not run SSNVS, E-Verify, CBSV, or eCBSV. They do not correct a record, replace a card, pay a benefit, confirm work authorization, or generate numbers. A result is not a Fair Credit Reporting Act consumer report. Do not use a result for hiring, credit, insurance, or housing. Do not type someone else’s Social Security Number.

How the services handle information is covered in the Privacy Policy. Permitted use, warranties, and liability are covered in the Terms of Service.

2. What a result means

Possible means the digits fit published reservation rules. The value has nine digits, the area is not a reserved area, the group is not 00, and the serial is not 0000. Possible does not mean SSA assigned the number, that a card exists, that the number is active, or that it belongs to a named person.

Impossible means the digits match a published pattern SSA does not assign: area 000, area 666, group 00, or serial 0000. That label is not a notice from SSA that a record is void or unused. Areas 900–999 are not Social Security Numbers. When the group is a published IRS range, including when the serial is 0000, the label is ITIN or ATIN rather than Impossible. Group 00 in that series stays Impossible.

A 900–999 value may be labeled ITIN or ATIN. A widely published placeholder may be labeled Sample. Those labels classify the pattern. They are not confirmation that the IRS issued the number, and they are not proof of identity.

On 25 June 2011 SSA began assigning new numbers at random. The first three digits on a new card are not a birth state. A historic area name shown by the services on this website is a lookup against the older allocation system.

3. Official channels

Card replacement, benefit questions, record corrections, and official verification belong at ssa.gov or another channel SSA authorizes. The services on this website do not take those cases and do not speak for SSA.

Questions about a taxpayer identification number, a wage report, or a tax filing belong at irs.gov.

A format result does not decide work authorization or employment eligibility. Those questions belong with the government program that handles them. Identity-theft reports belong at IdentityTheft.gov. Questions about this website may be sent through the Contact Us page. Do not send a Social Security Number.