Ssn.txt

Originally assigned by geographical region.

A valid U.S. Social Security Number follows a strict 9-digit format divided into three parts: SSN.txt

If you are using this file for a programming or data task, you might need specific formatting logic: The SSN Numbering Scheme - Social Security History Originally assigned by geographical region

XXX-XX-XXXX (with hyphens) or XXXXXXXXX (unformatted). 2. Common Formatting Methods SSN.txt

A unique identifier within the group.