How do we know if a social security number if from a male or a female ?

The sex of the SSN holder is not reflected in the the number.

See http://en.wikipedia.org/wiki/Social_Security_Numbe...

In part:

The Social Security number is a nine-digit number in the format "AAA-GG-SSSS". The number is divided into three parts.

The Area Number, the first three digits, is assigned by the geographical region. Prior to 1973, cards were issued in local Social Security offices around the country and the Area Number represented the office code in which the card was issued. This did not necessarily have to be in the area where the applicant lived, since a person could apply for their card in any Social Security office. Since 1973, when SSA began assigning SSNs and issuing cards centrally from Baltimore, the area number assigned has been based on the ZIP code in the mailing address provided on the application for the original Social Security card. The applicant's mailing address does not have to be the same as their place of residence. Thus, the Area Number does not necessarily represent the State of residence of the applicant, neither prior to 1973, nor since.

Generally, numbers were assigned beginning in the northeast and moving south and westward, so that people on the east coast had the lowest numbers and those on the west coast had the highest numbers. As the areas assigned to a locality are exhausted, new areas from the pool are assigned, so some states have noncontiguous groups of numbers.

Complete list of area number groups from the Social Security Administration

The middle two digits are the group number. The group numbers range from 01 to 99. However, they are not assigned in consecutive order. For administrative reasons, group numbers are issued in the following order:

1. ODD numbers from 01 through 09

2. EVEN numbers from 10 through 98

3. EVEN numbers from 02 through 08

4. ODD numbers from 11 through 99

As an example, group number 98 will be issued before 11.

* The last four digits are serial numbers. They represent a straight numerical sequence of digits from 0001-9999 within the group.

That's right. Now you need to visit an Insurance company and get the statistics about how males have a shorter life span than females. Ola! It eventually balances out in the middle years and then females become a majority in later years. Now, for the nitty gritty: Originally, and still in most underdeveloped countries, there are more male infant deaths than female infant deaths. Which balanced things pretty quickly. However, in the United States, recently infant mortality is on the drastic decrease. (Due to pre-natal care, and post-natal care)

You don't. They are issued one after the other with out regard to the sex of the person they are issued to.

Here is an explanation of the different parts of a social security number: http://www.socialsecurity.gov/history/ssn/geocard....

There is no way that you can tell.

The government when giving out the numbers go with who asked first.

When the child is born the parents request a SS # and the government sends it to them.

Perhaps, but I'm not fully convinced

Social Security Disability Help : http://disabilityhelp.siopu.com/?JTU

You don't.

you can't.