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Social Security Numbers issued to Illinois fall between 318-xx-xxxx and 361-xx-xxxx.


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About this Data

SSNs issued before June 25, 2011 are linked to where the number was issued which is often the same as where the cardholder was born. After 2011, SSN issuance was randomized. Not every SSN in the range above is necessarily valid. Learn More >

Illinois SSNs by Year

Within the 318-xx-xxxx to 361-xx-xxxx group, the 4th and 5th digits indicate when a number was issued.

Social Security Number First Year Issued Last Year Issued Estimated Age of Cardholder Valid SSN?
318-01-xxxx 1936 1950 81 to 99 yrs Valid
318-02-xxxx 2002 2004 15 to 17 yrs Valid
318-03-xxxx 1936 1950 81 to 99 yrs Valid
318-04-xxxx 2004 2006 13 to 15 yrs Valid
318-05-xxxx 1936 1950 81 to 99 yrs Valid
318-06-xxxx 2006 2008 11 to 13 yrs Valid
318-07-xxxx 1936 1950 81 to 99 yrs Valid
318-08-xxxx 2008 2010 9 to 11 yrs Valid
318-09-xxxx 1936 1950 81 to 99 yrs Valid
318-10-xxxx 1936 1950 81 to 99 yrs Valid
318-11-xxxx 2010 2011 8 to 9 yrs Valid
318-12-xxxx 1936 1950 81 to 99 yrs Valid
318-14-xxxx 1936 1950 81 to 99 yrs Valid
318-16-xxxx 1936 1950 81 to 99 yrs Valid
318-18-xxxx 1936 1950 81 to 99 yrs Valid
318-20-xxxx 1936 1950 81 to 99 yrs Valid
318-22-xxxx 1936 1950 81 to 99 yrs Valid
318-24-xxxx 1936 1950 81 to 99 yrs Valid
318-26-xxxx 1936 1950 81 to 99 yrs Valid
318-28-xxxx 1951 unknown 72 to 84 yrs Valid
318-30-xxxx 1952 1953 78 to 83 yrs Valid
318-32-xxxx 1954 1955 76 to 81 yrs Valid
318-34-xxxx 1956 1958 73 to 79 yrs Valid
318-36-xxxx 1959 1960 71 to 76 yrs Valid
318-38-xxxx 1961 1962 69 to 74 yrs Valid
318-40-xxxx 1963 unknown 60 to 72 yrs Valid
318-42-xxxx 1964 unknown 59 to 71 yrs Valid
318-44-xxxx 1965 unknown 58 to 70 yrs Valid
318-46-xxxx 1966 1967 64 to 69 yrs Valid
318-48-xxxx 1968 unknown 55 to 67 yrs Valid
318-50-xxxx 1969 unknown 54 to 66 yrs Valid
318-52-xxxx 1970 unknown 53 to 65 yrs Valid
318-54-xxxx 1971 1972 59 to 64 yrs Valid
318-56-xxxx 1973 unknown 50 to 62 yrs Valid
318-58-xxxx 1973 unknown 50 to 62 yrs Valid
318-60-xxxx 1974 unknown 49 to 61 yrs Valid
318-62-xxxx 1975 unknown 48 to 60 yrs Valid
318-64-xxxx 1976 unknown 47 to 59 yrs Valid
318-66-xxxx 1977 1978 53 to 58 yrs Valid
318-68-xxxx 1979 1980 51 to 56 yrs Valid
318-70-xxxx 1981 unknown 42 to 54 yrs Valid
318-72-xxxx 1982 1983 48 to 53 yrs Valid
318-74-xxxx 1984 unknown 39 to 51 yrs Valid
318-76-xxxx 1985 1986 45 to 50 yrs Valid
318-78-xxxx 1987 unknown 36 to 48 yrs Valid
318-80-xxxx 1987 unknown 36 to 48 yrs Valid
318-82-xxxx 1988 unknown 23 to 31 yrs Valid
318-84-xxxx 1989 1992 27 to 30 yrs Valid
318-86-xxxx 1989 1992 27 to 30 yrs Valid
318-88-xxxx 1989 1992 27 to 30 yrs Valid

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Source: //www.ssn-verify.com/lookup/illinois