This is an archival or historical document and may not reflect current policies or procedures.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
001-003New Hampshire
004-007Maine
008-009Vermont
010-034Massachusetts
035-039Rhode Island
040-049Connecticut
050-134New York
135-158New Jersey
159-211Pennsylvania
212-220Maryland
221-222Delaware
223-231Virginia
232North Carolina
232-236West Virginia
237-246Not Issued
247-251South Carolina
252-260Georgia
261-267Florida
268-302Ohio
303-317Indiana
318-361Illinois
362-386Michigan
387-399Wisconsin
400-407Kentucky
408-415Tennessee
416-424Alabama
425-428Mississippi
429-432Arkansas
433-439Louisiana
440-448Oklahoma
449-467Texas
468-477Minnesota
478-485Iowa
486-500Missouri
501-502North Dakota
503-504South Dakota
505-508Nebraska
509-515Kansas
516-517Montana
518-519Idaho
520Wyoming
521-524Colorado
525,585New Mexico
526-527Arizona
528-529Utah
530,680Nevada
531-539Washington
540-544Oregon
545-573California
574Alaska
575-576Hawaii
577-579District of Columbia
580Virgin Islands
580-584Puerto Rico
586Guam
586American Samoa
586Philippine Islands
587-665Not Issued
667-679Not Issued
681-690Not Issued
691-699Not Issued
700-728Railroad Board**
729-733Enumeration at Entry
750-772Not 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.

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