What are the SSN prefixes for Wyoming?

Wyoming was assigned the area-number range 520. A Social Security number issued there before 2011 begins with one of these three-digit numbers.

Does an SSN starting with 520 mean the person is from Wyoming?

For cards issued before June 25, 2011, an SSN whose first three digits fall in Wyoming's range was issued in Wyoming, usually based on the mailing address on the application, not necessarily birthplace. Numbers issued after randomization carry no location meaning.

How can I check a specific number?

Use the SSN checker to enter a full number and see whether its structure is valid, which state it maps to, and a rough estimate of when it was issued.

Social Security Number Prefixes for Wyoming

Area numbers 520

area range: 1
lowest area number: 520
highest area number: 520
area numbers: 1

Wyoming was assigned the Social Security area-number range 520. Before SSA randomized number assignment in June 2011, any SSN beginning with one of these three-digit prefixes was issued in Wyoming, generally based on the mailing address on the application. Newer numbers are assigned randomly and no longer indicate a state.

Wyoming area-number ranges

Area-number range	Count
520	1

Sample Wyoming SSN patterns

Estimated issue years for the lowest area/group combinations (illustrative):

Pattern	Estimated issued	Status
520-01-####	1936-1950	Valid
520-03-####	1936-1950	Valid
520-05-####	1936-1950	Valid
520-07-####	1936-1950	Valid
520-09-####	1936-1950	Valid
520-10-####	1936-1950	Valid
520-12-####	1936-1950	Valid
520-14-####	1936-1950	Valid
520-16-####	1936-1950	Valid
520-18-####	1936-1950	Valid
520-20-####	1936-1950	Valid
520-22-####	1936-1950	Valid
520-24-####	1936-1950	Valid
520-26-####	1936-1950	Valid
520-28-####	1936-1950	Valid
520-30-####	1936-1950	Valid
520-32-####	1938-1951	Valid
520-34-####	1939-1952	Valid
520-36-####	1941-1953	Valid
520-38-####	1942-1954	Valid
520-40-####	1943-1955	Valid
520-42-####	1945-1956	Valid
520-44-####	1946-1957	Valid
520-46-####	1948-1958	Valid

Frequently asked questions

What are the SSN prefixes for Wyoming?: Wyoming was assigned the area-number range 520. A Social Security number issued there before 2011 begins with one of these three-digit numbers.
Does an SSN starting with 520 mean the person is from Wyoming?: For cards issued before June 25, 2011, an SSN whose first three digits fall in Wyoming's range was issued in Wyoming, usually based on the mailing address on the application, not necessarily birthplace. Numbers issued after randomization carry no location meaning.
How can I check a specific number?: Use the SSN checker to enter a full number and see whether its structure is valid, which state it maps to, and a rough estimate of when it was issued.

Check a specific number with the SSN checker, or see all states.