If it's against the law to ask for your social security why are we ask for it by the wireless networks?

Question

the banks, the hospitals

Answer 1

It isn't against the law for private companies to ask for your social security number. According to CPSR:

"The short answer is that there are many restrictions on government agencies asking for your number, but few on individuals or companies. When someone from a government agency asks for your number, they are required to provide a Privacy Act Disclosure Notice, which is required to tell you what law allows them to ask, whether you have to provide your number, and what will happen if you don't provide the number.

Private companies aren't required to follow this law, and in general your recourse is to find another company to do business with if you don't like their policies."

Answer 2

Any one can ask. Some don't have the right to an answer.