Who called from 3235459224

This is BB Trading, AKA BB Surveys.  Other numbers include 323-545-9249 323-545-9275 323-545-9244 323-545-9249 323-545-9227.  They have a history of ignoring the Do Not Call and not taking you off their calling list when requested, so make sure you report them at http://www.donotcall.gov

When I answer the ohone, they hang up on me, but now that I know it is just bogus I will hang up on them first, because I am on the DO NOT CALL LIST.

I would be forever in debt to the person responsible for torching the offices of this company and killing each employee inside.  How else are we able to stop this?