How are Social Security numbers assigned?

Answer Social Security numbers are assigned according to geography--but the system is not very precise, and it doesn't necessarily reflect where a person was born or even where she lived.BasicsEvery Socia... Read More »

Top Q&A For: How are Social Security numbers assigned

How is a social security number assigned?

A nine-digit social security number is determined by three sets of numbers: the three-digit Area Number, two-digit Group Number, and four-digit Serial Number. Until 1973, numbers were assigned by l... Read More »

Are the numbers on the back of the Social Security card the routing numbers for the Federal Reserve?

Newer cards issued by the Social Security Administration have a red number printed on the back. Rumors state that these numbers signify a routing or account number within the Federal Reserve bankin... Read More »

How many different social security numbers can there be?

A social security number is nine digits. Therefore, there are 1 billion unique numbers that can be created. However, it's unlikely that the Social Security Department would issue numbers such as "0... Read More »

How many possible Social Security numbers are there?

Social Security numbers are nine digits long, making a possible one billion number combinations. When you omit the numbers where one block would be made up of all zeroes, you're left with 988,911,0... Read More »