Connecticut SSN lookup

Area numbers assigned to Connecticut fell in these old-system blocks: 040-049. Use this page to see which prefixes matched Connecticut and then check an individual number.

Area number range

040-049

Published area blocks tied to this lookup page.

Area count

Distinct area numbers in this assignment block.

What this page tells you

Location match

Use these prefixes to see whether the first three digits point to Connecticut before you run a full lookup.

Connecticut area numbers

The first three digits of an old-style SSN could point to Connecticut when they fell inside one of these published ranges.

040-049

Areas 040 through 049

Connecticut SSN patterns by year

These rows show the issued area and group combinations linked to Connecticut. Open any pattern as a full lookup by swapping in the last four digits.

Social Security number	First year	Last year	Likely age today	Status
040-01-####	1936	1950	76 to 108 yrs	Valid
040-03-####	1936	1950	76 to 108 yrs	Valid
040-05-####	1936	1950	76 to 108 yrs	Valid
040-07-####	1936	1950	76 to 108 yrs	Valid
040-09-####	1936	1950	76 to 108 yrs	Valid
040-10-####	1936	1950	76 to 108 yrs	Valid
040-12-####	1936	1950	76 to 108 yrs	Valid
040-14-####	1936	1950	76 to 108 yrs	Valid
040-16-####	1936	1950	76 to 108 yrs	Valid
040-18-####	1936	1950	76 to 108 yrs	Valid
040-20-####	1936	1950	76 to 108 yrs	Valid
040-22-####	1937	1951	75 to 107 yrs	Valid
040-24-####	1939	1952	74 to 105 yrs	Valid
040-26-####	1941	1953	73 to 103 yrs	Valid
040-28-####	1943	1954	72 to 101 yrs	Valid
040-30-####	1944	1956	70 to 100 yrs	Valid
040-32-####	1946	1957	69 to 98 yrs	Valid
040-34-####	1948	1958	68 to 96 yrs	Valid
040-36-####	1950	1960	66 to 94 yrs	Valid
040-38-####	1952	1961	65 to 92 yrs	Valid
040-40-####	1954	1962	64 to 90 yrs	Valid
040-42-####	1956	1964	62 to 88 yrs	Valid
040-44-####	1958	1965	61 to 86 yrs	Valid
040-46-####	1960	1966	60 to 84 yrs	Valid
040-48-####	1962	1968	58 to 82 yrs	Valid
040-50-####	1964	1969	57 to 80 yrs	Valid
040-52-####	1966	1970	56 to 78 yrs	Valid
040-54-####	1968	1972	54 to 76 yrs	Valid
040-56-####	1970	1973	53 to 74 yrs	Valid
040-58-####	1972	1974	52 to 72 yrs	Valid

How to use this page

If an SSN starts with one of the prefixes above, Connecticut is a likely issue location under the old system.

To check the number further, run the full nine digits through the checker. The result page can then tell you whether the group fits the published record and what year range the number most likely falls into.

Example old-style prefix for this page: 040-01-0001

Check a Connecticut SSN

Enter a full SSN to check whether it fits the old record for Connecticut.

More lookup pages

Browse all state lookup pages

Browse the full area number directory