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How to Decipher a Social Security Number

This information isn't really a secret. It just isn't very well known. According to the Social Security Administration, your nine-digit Social Security Number (SSN) is divided into three parts:

1. The first three digits are known as the "area number". This is generally the State or territory where your SSN was assigned.

2. The second two numbers are known as the "group numbers". They really do not have any geographical or data significance.

3. The third set, of four numbers, is simply the numerical sequence of digits 0001 to 9999 issued within each group.

People born in the United States since 1987 may have had their SSN applied for them by the hospital at birth. This does vary by State. By using the first three numbers of anyone's SSN, you can either tell in which State they were born, or at the least, one of the States where they once lived. Try it!

Social Security "Area Code" Number Chart

The first three digits of a Social Security Number correspond to locations as follows:
SSNStateSSNState or Territory
001-003New Hampshire449-467, 627-645Texas
004-007Maine468-477Minnesota
008-009Vermont478-485Iowa
010-034Massachusetts486-500Missouri
035-039Rhode Island501-502North Dakota
040-049Connecticut503-504South Dakota
050-134New York505-508Nebraska
135-158New Jersey509-515Kansas
159-211Pennsylvania516-517Montana
212-220Maryland518-519Idaho
221-222Delaware520Wyoming
223-231, 691-699*Virginia521-524, 650-653Colorado
232-236West Virginia525, 585, 648-649New Mexico
232, 237-246, 681-690North Carolina526-527, 600-601, 764-765Arizona
247-251, 654-658South Carolina528-529, 646-647Utah
252-260, 667-675Georgia530, 680Nevada
261-267, 589-595,
766-772
Florida531-539Washington
268-302Ohio540-544Oregon
303-317Indiana545-573, 602-626California
318-361Illinois574Alaska
362-386Michigan575-576, 750-751*Hawaii
387-399Wisconsin577-579District of Columbia
400-407Kentucky580Virgin Islands
408-415, 756-763*Tennessee580-584, 596-599Puerto Rico
416-424Alabama586Guam
425-428, 587-588,
752-755*
Mississippi586American Samoa
429-432, 676-679Arkansas586Philippine Islands
433-439, 659-665Louisiana700-728Railroad Board**
440-448Oklahoma729-733Enumeration at Entry


Notes:
1. Any number beginning with "000" will never be a valid SSN.
2. To date, no area number has been issued after "772".
3. If the same area number appears more than oncve, it is because certain numbers were transferred from one State to another or that the area number was divided for use amongst certain geographical locations.
4. * = New areas allocatedd, but not yet issued.
5. ** = 700-728 issuance of these numbers to railroad employees was discontinued July 1, 1963.

Source: www.socialsecurity.gov. All data is current as of January 1, 2004.

Information is from sources believed to be reliable but cannot be guaranteed. The information presented is solely intended to assist site visitors in better understanding Social Security Numbers.

Since we do not have complete control over the "Ads by Google" appearing on this page, we do not directly endorse their sites or products. Please notify us if you find any of the advertisers to be misleading.
Feel free to contact me to correct any information in this article.

© 2004 Topher

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