Illinois SSN lookup

Area numbers assigned to Illinois fell in these old-system blocks: 318-361. Use this page to see which prefixes matched Illinois and then check an individual number.

This is page 65 of 81. The rows on this page run from 353-05-#### to 353-62-####.

Area number range

318-361

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 Illinois before you run a full lookup.

Illinois area numbers

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

318-361

Areas 318 through 361

Illinois SSN patterns by year

These rows show the issued area and group combinations linked to Illinois. 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
353-05-####	1936	1950	76 to 108 yrs	Valid
353-07-####	1936	1950	76 to 108 yrs	Valid
353-09-####	1936	1950	76 to 108 yrs	Valid
353-10-####	1936	1950	76 to 108 yrs	Valid
353-12-####	1936	1950	76 to 108 yrs	Valid
353-14-####	1936	1950	76 to 108 yrs	Valid
353-16-####	1936	1950	76 to 108 yrs	Valid
353-18-####	1936	1950	76 to 108 yrs	Valid
353-20-####	1936	1950	76 to 108 yrs	Valid
353-22-####	1938	1951	75 to 106 yrs	Valid
353-24-####	1940	1953	73 to 104 yrs	Valid
353-26-####	1942	1954	72 to 102 yrs	Valid
353-28-####	1944	1956	70 to 100 yrs	Valid
353-30-####	1946	1957	69 to 98 yrs	Valid
353-32-####	1948	1958	68 to 96 yrs	Valid
353-34-####	1950	1960	66 to 94 yrs	Valid
353-36-####	1952	1961	65 to 92 yrs	Valid
353-38-####	1954	1963	63 to 90 yrs	Valid
353-40-####	1957	1964	62 to 87 yrs	Valid
353-42-####	1959	1965	61 to 85 yrs	Valid
353-44-####	1961	1967	59 to 83 yrs	Valid
353-46-####	1963	1968	58 to 81 yrs	Valid
353-48-####	1965	1970	56 to 79 yrs	Valid
353-50-####	1967	1971	55 to 77 yrs	Valid
353-52-####	1969	1972	54 to 75 yrs	Valid
353-54-####	1971	1974	52 to 73 yrs	Valid
353-56-####	1973	1975	51 to 71 yrs	Valid
353-58-####	1975	1977	49 to 69 yrs	Valid
353-60-####	1977	1978	48 to 67 yrs	Valid
353-62-####	1978	1980	46 to 66 yrs	Valid

What this page covers

This page covers issued SSN patterns for Illinois from 353-05-#### to 353-62-####. If you are scanning older prefixes or comparing issue-year ranges, this gives you a faster way to narrow the search.

Each row represents a valid issued area and group combination under the old system. Open any row to run a full number check and see the likely location and year range.

How to use this page

If an SSN starts with one of the prefixes above, Illinois 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: 318-01-0001

Check a Illinois SSN

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

More lookup pages

Browse all state lookup pages

Browse the full area number directory