Social Security Index of Valid Numbers

The first three numbers of a social security number indicates the state in which that number was assigned. Typically, most people obtain their social security card from the state they live in. Use this chart as a quick reference guide to help determine the legitamacy of the number and verify address history of the prospective tenant.

Invalid Social Security Numbers

• Three or more leading zeros
• Ending in four zeros
• Leading numbers 73-79
• Leading numbers 6 or 8
• Leading number of 9 is suspect, very few ever issued

States that may use the SSN as a driver license number

States that have part of the DOB within the driver license number

Connecticut : Nine digit number.  The first two digits indicate month of birth.

Florida : The second to last set of numbers give you the year and month of birth. 

Illinois : Either 11 or 12 digits.  The last set of digits gives you the month and year of birth.

Maryland : 12 digits.  The last set of digits gives you the month and year of birth.

Michigan : Uses a soundex system with the last three digits used as a code for the month and day of birth.

Missouri : 15 digits.  Digits 4-15: Coded for the first name, middle initial, month and day of birth, sex.

Nevada : Last two digits are year of birth.

New Hampshire : Second to last set of four digits gives you the year and month of birth.

New Jersey : 15 characters.  Last 5 digits gives you month, year of birth, color of eyes.

New York : Last section of digits gives you month, day and year of birth.

South Dakota : Last section of digits gives you month and year of birth.

Washington : Year of birth encoded by subtracting 100.

Wisconsin : Cut off the last two digits.  The next five give you year, month and day of birth in that order