Best answer
nine-digit
People also ask
How many social security numbers are there in the United States?
Today the SSN may be the most commonly used numbering system in the United States. As of December 2008, the Social Security Administration ( SSA) had issued over 450 million original SSN s, and nearly every legal resident of the United States had one.
What is a Social Security number and how do I get one?
What is a Social Security Number? A social security number is a nine-digit identification number given to U.S. citizens, permanent residents, and non-immigrant working residents. Social Security numbers are needed to work in the United States, to collect Social Security benefits, and to be eligible for other social services. 1
What are the last 4 digits of the SSN called?
The last four digits of the SSN are the serial number. The serial number represents a straight numerical series of numbers from 0001鈥?999 within each group. Serial number 0000 is not assigned. Designing the Social Security Card
What do the first three digits in a Social Security number mean?
Early on, SSNs were issued through the states, and the first three digits designated the state where the person obtained the number; some states had more than one number, and this continued through 1972.