Go ahead and turn them in. I have turned in hundreds of numbers and it does squat. The Do Not Call list is a big joke and does not work. Scammers do not care if you turn them in. Usually the phone number is spoofed or fake and if someone comes after them they move to a new spot or change their number
Called today and wife answered the phone. They were collecting for one phoney police benefit organization or another. Don't remember exactly which one. They were told once before to take our number off their list. They obviously don't care about that. Now call blocked.