Social Security Number generator (United States)
A US Social Security Number (SSN) is a nine-digit identifier formatted AAA-GG-SSSS. These test numbers use the never-issued 900–999 area range, so they are valid in format yet cannot belong to a real person.
✓ Reserved range · safe Validate a number →
962-01-5274
Uses the never-issued 900–999 area range — cannot belong to a real person.
Format specification
| Identifier | Social Security Number |
|---|---|
| Country | 🇺🇸 United States |
| Format | AAA-GG-SSSS |
| Length | 9 characters |
| Checksum | None |
| Example | 971-29-9519 |
| Safe strategy | Reserved range |
| Data quality | Verified against sources |
Social Security Number: what each part means
| AAA | Area number. Historically tied to the state where the SSN was applied for; randomised since June 2011. 900–999 is never issued to a person — it is the range these test values draw from. |
|---|---|
| GG | Group number, 01–99. Carries no personal meaning; it was used to break issuance into batches. 00 is never valid. |
| SSSS | Serial number, 0001–9999, assigned consecutively within a group. 0000 is never valid. |
Validation regex
Matches the canonical value — strip separators and uppercase first: value.replace(/[^A-Za-z0-9]/g, '').toUpperCase()
^\d{9}$ References
Common questions
Will these pass my validation?
Yes — they are well-formed Social Security Number values (AAA-GG-SSSS) and pass standard format checks.
Could one belong to a real person?
Uses the never-issued 900–999 area range — cannot belong to a real person.
Can I generate many at once?
Increase the count, or use the free API and CSV/JSON export for large datasets.
For software testing only. These numbers are synthetic and must never be used
for real-world identification, applications, or to impersonate anyone.