| Answer | Crossword Clue |
|---|---|
| SSA | Nine-digit ID source |
| SSN | Nine-digit ID |
| SSN | Nine digit ID |
| SSAN | Nine-digit ID |
| SSN | Nine-digit ID: Abbr. |
| SSN | Nine-digit government ID |
| SSA | Nine-digit ID issuer |
| SSN | Nine-digit govt. ID |
| SSN | Taxpayer's nine-digit ID |
| SSN | Nine-digit ID (Abbr.) |
| SSN | Taxpayer's nine-digit ID: Abbr. |
