MORE SOCIAL SECURITY # PREFIXES
| Louisiana | 433-439 |
| Oklahoma | 440-448 |
| Texas | 449-467 |
| Minnesota | 468-477 |
| Iowa | 478-485 |
| Missouri | 486-500 |
| North Dakota | 501-502 |
| South Dakota | 503-504 |
| Nebraska | 505-508 |
| Kansas | 509-515 |
| Montana | 516-517 |
| Idaho | 518-519 |
| Wyoming | 520-521 |
| Colorado | 522-524 |
| New Mexico | 525/585 |
| Arizona | 526-527 |
| Utah | 528-529 |
| Nevada | 530 |
| Washington | 531-539 |
| Oregon | 540-544 |
| California | 545-573 |
| Alaska | 574-575 |
| Hawaii | 576-577 |
| District of Columbia | 580 |
| Virgin Islands PR, Guam,AS, PI | 581-586 |