What are the SSN prefixes for Utah?

Utah was assigned the area-number ranges 528-529, 646-647. A Social Security number issued there before 2011 begins with one of these three-digit numbers.

Does an SSN starting with 528 mean the person is from Utah?

For cards issued before June 25, 2011, an SSN whose first three digits fall in Utah's range was issued in Utah, 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 Utah

Area numbers 528-529, 646-647

area ranges: 2
lowest area number: 528
highest area number: 647
area numbers: 4

Utah was assigned the Social Security area-number ranges 528-529, 646-647. Before SSA randomized number assignment in June 2011, any SSN beginning with one of these three-digit prefixes was issued in Utah, generally based on the mailing address on the application. Newer numbers are assigned randomly and no longer indicate a state.

Utah area-number ranges

Area-number range	Count
528-529	2
646-647	2

Sample Utah SSN patterns

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

Pattern	Estimated issued	Status
528-01-####	1936-1950	Valid
528-03-####	1936-1950	Valid
528-05-####	1936-1950	Valid
528-07-####	1936-1950	Valid
528-09-####	1936-1950	Valid
528-10-####	1936-1950	Valid
528-12-####	1936-1950	Valid
528-14-####	1936-1950	Valid
528-16-####	1936-1950	Valid
528-18-####	1936-1950	Valid
528-20-####	1936-1950	Valid
528-22-####	1936-1950	Valid
528-24-####	1936-1950	Valid
528-26-####	1936-1950	Valid
528-28-####	1936-1950	Valid
528-30-####	1936-1950	Valid
528-32-####	1936-1950	Valid
528-34-####	1936-1950	Valid
528-36-####	1936-1950	Valid
528-38-####	1936-1950	Valid
528-40-####	1936-1950	Valid
528-42-####	1937-1951	Valid
528-44-####	1938-1951	Valid
528-46-####	1939-1952	Valid

Frequently asked questions

What are the SSN prefixes for Utah?: Utah was assigned the area-number ranges 528-529, 646-647. A Social Security number issued there before 2011 begins with one of these three-digit numbers.
Does an SSN starting with 528 mean the person is from Utah?: For cards issued before June 25, 2011, an SSN whose first three digits fall in Utah's range was issued in Utah, 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.