US Social Security Number

Overview

Detects potential U.S. Social Security Numbers (SSNs) based on strict numeric pattern characteristics and Social Security Administration (SSA) assignment rules.

Format

9 numeric digits structured as three components: a 3-digit area number, a 2-digit group number, and a 4-digit serial number. Optional hyphens or spaces are permitted as separators in standard positions (e.g., 123-45-6789 or 123 45 6789).

Checksum

No

Whole word match 

Yes

Confidence level

Medium

Proximity

300 characters

Keywords