ID > SSN (loose) Favorite

Checks format only. One or both hyphens may be left out.

Sample Matches
Text Result
123-45-6789
Group #0
123-45-6789
match
123-456789
Group #0
123-456789
match
12345-6789
Group #0
12345-6789
match
123456789
Group #0
123456789
match
12-345-6789no match
123 45 6789no match