Colorado Social Security Numbers

Social Security Numbers issued to Colorado fall between 521-##-#### and 653-##-####.

Use the SSN Search Tool to check individual Social Security Numbers.

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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 >

Colorado SSNs by Year

Within the 521-##-#### to 653-##-#### 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?
650-09-####	1998	1999	25 to 26 yrs	Valid
650-10-####	1999	unknown	17 to 25 yrs	Valid
650-12-####	1999	unknown	17 to 25 yrs	Valid
650-14-####	2000	unknown	16 to 24 yrs	Valid
650-16-####	2000	unknown	16 to 24 yrs	Valid
650-18-####	2001	unknown	15 to 23 yrs	Valid
650-20-####	2001	unknown	15 to 23 yrs	Valid
650-22-####	2002	unknown	14 to 22 yrs	Valid
650-24-####	2002	unknown	14 to 22 yrs	Valid
650-26-####	2003	unknown	13 to 21 yrs	Valid
650-28-####	2003	unknown	13 to 21 yrs	Valid
650-30-####	2003	2004	20 to 21 yrs	Valid
650-32-####	2004	unknown	12 to 20 yrs	Valid
650-34-####	2004	2005	19 to 20 yrs	Valid
650-36-####	2005	unknown	11 to 19 yrs	Valid
650-38-####	2005	2006	18 to 19 yrs	Valid
650-40-####	2006	unknown	10 to 18 yrs	Valid
650-42-####	2006	2007	17 to 18 yrs	Valid
650-44-####	2007	unknown	9 to 17 yrs	Valid
650-46-####	2007	unknown	9 to 17 yrs	Valid
650-48-####	2007	2008	16 to 17 yrs	Valid
650-50-####	2008	unknown	8 to 16 yrs	Valid
650-52-####	2008	2009	15 to 16 yrs	Valid
650-54-####	2009	unknown	7 to 15 yrs	Valid
650-56-####	2009	2010	14 to 15 yrs	Valid
650-58-####	2010	unknown	6 to 14 yrs	Valid
650-60-####	2010	2011	13 to 14 yrs	Valid
650-62-####	2011	unknown	5 to 13 yrs	Valid
651-01-####	1996	unknown	20 to 28 yrs	Valid
651-03-####	1997	unknown	19 to 27 yrs	Valid
651-05-####	1997	unknown	19 to 27 yrs	Valid
651-07-####	1998	unknown	18 to 26 yrs	Valid
651-09-####	1998	1999	25 to 26 yrs	Valid
651-10-####	1999	unknown	17 to 25 yrs	Valid
651-12-####	1999	2000	24 to 25 yrs	Valid
651-14-####	2000	unknown	16 to 24 yrs	Valid
651-16-####	2000	2001	23 to 24 yrs	Valid
651-18-####	2001	unknown	15 to 23 yrs	Valid
651-20-####	2001	unknown	15 to 23 yrs	Valid
651-22-####	2002	unknown	14 to 22 yrs	Valid
651-24-####	2002	2003	21 to 22 yrs	Valid
651-26-####	2003	unknown	13 to 21 yrs	Valid
651-28-####	2003	unknown	13 to 21 yrs	Valid
651-30-####	2003	2004	20 to 21 yrs	Valid
651-32-####	2004	unknown	12 to 20 yrs	Valid
651-34-####	2004	2005	19 to 20 yrs	Valid
651-36-####	2005	unknown	11 to 19 yrs	Valid
651-38-####	2005	2006	18 to 19 yrs	Valid
651-40-####	2006	unknown	10 to 18 yrs	Valid
651-42-####	2006	2007	17 to 18 yrs	Valid

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