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SSNChecker Social Security Number verification and lookup

Is 645-18-0001 a valid SSN?

645-18-0001 looks valid in the public record. The likely issue location is Texas (TX), and the year range is 1937 to 1950.

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 645-18-0001 a valid SSN?

Valid

645-18-0001 looks valid in the public record. The likely issue location is Texas (TX), and the year range is 1937 to 1950.

Status

Valid

Matches the public SSA record.

Issue location

Texas (TX)

Based on the first three digits of the SSN.

Issue years

1937 to 1950

Estimated first and last year for this number range.

Lookup details
SSN
645-18-0001
Area number
645
Group number
18
Serial number
0001
Last published group
29
Record window
before November 2003

What this result means

645-18-0001 fits the published pre-randomization record. The area points to Texas (TX), and the published group history supports an issue range of 1937 to 1950.