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SSNChecker Social Security Number verification and lookup

Is 421-36-0001 a valid SSN?

421-36-0001 looks valid in the public record. The likely issue location is Alabama (AL), and the year range is 1939 to 1952.

Check a Social Security number

Enter any 9-digit SSN to check format, likely issue location, and the published issue-year range.

Formats like `001010013` and `001-01-0013` both work.

Is 421-36-0001 a valid SSN?

Valid

421-36-0001 looks valid in the public record. The likely issue location is Alabama (AL), and the year range is 1939 to 1952.

Status

Valid

Matches the public SSA record.

Issue location

Alabama (AL)

Based on the first three digits of the SSN.

Issue years

1939 to 1952

Estimated first and last year for this number range.

Lookup details
SSN
421-36-0001
Area number
421
Group number
36
Serial number
0001
Last published group
67
Record window
before November 2003

What this result means

421-36-0001 fits the published pre-randomization record. The area points to Alabama (AL), and the published group history supports an issue range of 1939 to 1952.