It's Charter Communication Sales

Charter communications, cable

 Yep, its Charter, with their new flock of phone dialers in Birmingham, AL.

This company calls 2 to 3 times a day and I have ask to speak to  some one that can stop the calls. Still getting the calls.

This company needs a class action suit filed against them for nuisance calling, unwanted attention and by definition it is 'stalking' of customers. Disturbing the peaceful enjoyment of your home with multiple harassing calls, harassment and mis-use of personal information.  
Of course there is a LIST on which you are already receiving a service from them. And the best way to stop calls, cancel their service.
If a company refuses you services for not giving out your phone number after you provide a mailing address, they can be sued. You are not required to own a phone to have cable tv.