<P> Prior to June 25, 2011, a valid SSN could not have an area number between 734 and 749, or above 772, the highest area number the Social Security Administration has allocated . Effective June 25, 2011, the SSA assigns SSNs randomly and allows for the assignment of area numbers between 734 and 749 and above 772 through the 800s . This should not be confused with Tax Identification Numbers (TINs), which include additional area numbers . </P> <P> Some special numbers are never allocated: </P> <Ul> <Li> Numbers with all zeros in any digit group (000 - ##- ####, ###- 00 - ####, ###- ##- 0000). </Li> <Li> Numbers with 666 or 900 - 999 (Individual Taxpayer Identification Number) in the first digit group . </Li> </Ul> <Li> Numbers with all zeros in any digit group (000 - ##- ####, ###- 00 - ####, ###- ##- 0000). </Li>

When did they start giving social security numbers at birth