Social Security Number Allocations

This is an archival or historical document and may not reflect current policies or procedures.
WARNING

On June 25, 2011, Social Security changed the SSN assignment process. The information below explains how we established and issued SSNs prior to the new SSN assignment process. We continue to provide it strictly for historical and informational purposes. Please see SSN Randomization for more information on Social Security’s new assignment process and how it may affect you.
Since 1973, social security numbers have been issued by our central office. The first three (3) digits of a person’s social security number are determined by the ZIP Code of the mailing address shown on the application for a social security number. Prior to 1973, social security numbers were assigned by our field offices. The number merely established that his/her card was issued by one of our offices in that State. See also High Group List of SSN’s.

THIS DATA IS STRICTLY FOR INFORMATIONAL PURPOSES

The chart below shows the first 3 digits of the social security numbers assigned throughout the United States and its possessions. The same area, when shown more than once, means that certain numbers have been transferred from one State to another, or that an area has been divided for use among certain geographic locations.
SSN Area Number Location
001-003 New Hampshire
004-007 Maine
008-009 Vermont
010-034 Massachusetts
035-039 Rhode Island
040-049 Connecticut
050-134 New York
135-158 New Jersey
159-211 Pennsylvania
212-220 Maryland
221-222 Delaware
223-231 Virginia
232 North Carolina
232-236 West Virginia
237-246 Not Issued
247-251 South Carolina
252-260 Georgia
261-267 Florida
268-302 Ohio
303-317 Indiana
318-361 Illinois
362-386 Michigan
387-399 Wisconsin
400-407 Kentucky
408-415 Tennessee
416-424 Alabama
425-428 Mississippi
429-432 Arkansas
433-439 Louisiana
440-448 Oklahoma
449-467 Texas
468-477 Minnesota
478-485 Iowa
486-500 Missouri
501-502 North Dakota
503-504 South Dakota
505-508 Nebraska
509-515 Kansas
516-517 Montana
518-519 Idaho
520 Wyoming
521-524 Colorado
525,585 New Mexico
526-527 Arizona
528-529 Utah
530,680 Nevada
531-539 Washington
540-544 Oregon
545-573 California
574 Alaska
575-576 Hawaii
577-579 District of Columbia
580 Virgin Islands
580-584 Puerto Rico
586 Guam
586 American Samoa
586 Philippine Islands
587-665 Not Issued
667-679 Not Issued
681-690 Not Issued
691-699 Not Issued
700-728 Railroad Board**
729-733 Enumeration at Entry
750-772 Not Issued
NOTES

**700-728 Issuance of these numbers to railroad employees was discontinued July 1, 1963.

Any number beginning with 000 will NEVER be a valid SSN.
The information in our records about an individual is confidential by law and cannot be disclosed except in certain very restricted cases permitted by regulations.

http://www.socialsecurity.gov/employer/stateweb.htm

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