One of 8 calls from CCI in the past two days.  As I block one number they call from another.  Area codes vary.  This is a boiler room telemarketing company.  They call for various reasons:  medicare supplements, credit card interest rates, breast cancer research, etc.  No matter the client, keep in mind that they (the telemarketing scum) receive about 90% of the proceeds.  Some even have "minimum" clauses so that they get to keep ALL the money they collect if they don't get a particular minimum amount.  They completely ignore the DNC list and are little more than thieves.  Never answer calls from numbers or persons you don't recognize.  This is one more number to add to your block list.
Again, they are CCI telemarketing and they ignore the DNC list.