Have you ever tried calling a call center back? Because they do not accept incoming calls on those numbers. In fact generally those numbers are spoofed
The real solution to the whole problem is to require telephone companies to cut off the bastards. They can do it easily, they know where all those calls come from and they can see when they're spoofed numbers. Spoof a number - automatic suspension of service. In fact I'm pretty sure they could fix it so you can't spoof a number.