Delaware Social Security Numbers

Social Security Numbers issued to Delaware fall between 221-##-#### and 222-##-####.

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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 >

Delaware SSNs by Year

Within the 221-##-#### to 222-##-#### 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?
221-01-####	1936	1950	87 to 105 yrs	Valid
221-02-####	2004	2006	19 to 21 yrs	Valid
221-03-####	1936	1950	87 to 105 yrs	Valid
221-04-####	2006	2007	18 to 19 yrs	Valid
221-05-####	1936	1950	87 to 105 yrs	Valid
221-06-####	2007	2008	17 to 18 yrs	Valid
221-07-####	1936	1950	87 to 105 yrs	Valid
221-08-####	2008	2009	16 to 17 yrs	Valid
221-09-####	1936	1950	87 to 105 yrs	Valid
221-10-####	1936	1950	87 to 105 yrs	Valid
221-11-####	2009	2011	14 to 16 yrs	Valid
221-12-####	1936	1950	87 to 105 yrs	Valid
221-13-####	2011	unknown	6 to 14 yrs	Valid
221-14-####	1936	1950	87 to 105 yrs	Valid
221-16-####	1936	1950	87 to 105 yrs	Valid
221-18-####	1936	1950	87 to 105 yrs	Valid
221-20-####	1936	1950	87 to 105 yrs	Valid
221-22-####	1951	1953	84 to 90 yrs	Valid
221-24-####	1954	1955	82 to 87 yrs	Valid
221-26-####	1956	1958	79 to 85 yrs	Valid
221-28-####	1959	1960	77 to 82 yrs	Valid
221-30-####	1961	1962	75 to 80 yrs	Valid
221-32-####	1963	1964	73 to 78 yrs	Valid
221-34-####	1965	unknown	64 to 76 yrs	Valid
221-36-####	1966	unknown	63 to 75 yrs	Valid
221-38-####	1967	unknown	62 to 74 yrs	Valid
221-40-####	1968	1969	68 to 73 yrs	Valid
221-42-####	1970	unknown	59 to 71 yrs	Valid
221-44-####	1971	unknown	58 to 70 yrs	Valid
221-46-####	1972	unknown	57 to 69 yrs	Valid
221-48-####	1973	unknown	56 to 68 yrs	Valid
221-50-####	1973	unknown	56 to 68 yrs	Valid
221-52-####	1973	unknown	56 to 68 yrs	Valid
221-54-####	1974	unknown	55 to 67 yrs	Valid
221-56-####	1975	unknown	54 to 66 yrs	Valid
221-58-####	1975	unknown	54 to 66 yrs	Valid
221-60-####	1976	1979	58 to 65 yrs	Valid
221-62-####	1980	unknown	49 to 61 yrs	Valid
221-64-####	1981	1982	55 to 60 yrs	Valid
221-66-####	1983	unknown	46 to 58 yrs	Valid
221-68-####	1984	unknown	45 to 57 yrs	Valid
221-70-####	1985	1986	51 to 56 yrs	Valid
221-72-####	1987	unknown	42 to 54 yrs	Valid
221-74-####	1988	unknown	29 to 37 yrs	Valid
221-76-####	1988	unknown	29 to 37 yrs	Valid
221-78-####	1989	1992	33 to 36 yrs	Valid
221-80-####	1989	1992	33 to 36 yrs	Valid
221-82-####	1989	1992	33 to 36 yrs	Valid
221-84-####	1993	unknown	24 to 32 yrs	Valid
221-86-####	1994	unknown	23 to 31 yrs	Valid

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