commissioner. 1  a person authorized to do certain things by a commission or warrant. 2  a member of a commission (sense). 3  an official in charge of a certain government bureau, commission, departmental office, etc.
According to the Social Security Administration, your nine-digit Social Security Number (SSN) is divided into three parts: 1. The first three digits are known as the area number. Until June 25, 2011, this is generally the State or territory where your SSN was assigned. Thereafter, the number was randomly assigned.
1 Prior to 1972/1973, social security numbers were assigned by field offices. Therefore, the Area Number does not necessarily represent the State of residence of the applicant, either prior to 1972/1973 or since.  People born in the United States since 1987 may have had their SSN applied for them by the hospital at birth.