Social Security Number Prefixes by State
Prefix Lookup
Search historical SSN area numbers
| Prefix | State Code | State Name |
|---|---|---|
| 546 | NM | New Mexico |
| 546 | CA | California |
| 547 | NM | New Mexico |
| 547 | CA | California |
| 548 | CA | California |
| 548 | NM | New Mexico |
| 549 | CA | California |
| 549 | NM | New Mexico |
| 550 | CA | California |
| 550 | NM | New Mexico |
| 551 | CA | California |
| 551 | NM | New Mexico |
| 552 | NM | New Mexico |
| 552 | CA | California |
| 553 | NM | New Mexico |
| 553 | CA | California |
| 554 | NM | New Mexico |
| 554 | CA | California |
| 555 | NM | New Mexico |
| 555 | CA | California |