how many social security numbers are there

how many social security numbers are there插图

Best answer


Assuming that there are no invalid social security numbers and that all social security numbers are nine digits long,there are exactly one billionunique numbers. Explanation: If you start at zero and count all the way up to 999,999,999,you’ll hit every single social security number that there is,from 00-000-0000 to 99-999-9999.

People also ask


  • How many people have been issued a Social Security number?

  • Since 1936, the Social Security Administration has issued 450+ million SSNs. The current population of the United States is around 320 million people so this number makes sense. Social Security Numbers are 9 digits long and usually formatted with two hyphens like xxx-xx-xxxx.. With 9 digits there are…

  • How many combinations of 9 digits are possible with a social security?

  • A social security number is a 9 digit number and if all combinations of 9 digits were valid social security numbers the number possible would be. 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 = 1 000 000 000 It’s relatively easy to see why this is true. For a one digit number you have 10 possibilities, 0,1,2,3,4,5,6,7,8 and 9.

  • How many zeros are there in a Social Security number?

  • Any field all zeroes (no field of zeroes is ever assigned). First three digits above 740 A pamphlet entitled The Social Security Number (Pub. No. 05-10633) provides an explanation of the SSN’s structure and the method of assigning and validating Social Security numbers.

  • 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

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