Mandy, Criminals don't follow the rules. Rules for them are none. They will dial whom ever they please and all hours of the day. They DO NOT use the DO NOT call list. Legit companies do. But criminals do not! They are out to make money within a very short period of time before they are shut down, usually by calling the wrong number. The numbers they are calling from are usually Google voice numbers or spoofed numbers. If you try and call them back they are usually disconnected or non-working numbers. Big hint right there! They do call from real numbers, but that number is masked by the fake number. Those that have access to tracking them down usually find they are using using some type of VOIP IP address and by they they have closed up shop on that line and moved on to another. Also pressing a sequence of numbers to have your number removed only results in more calls as they just tells them the number they called is alive and kicking. I do not answer any caller that comes up as just a number. Again if it's a legit caller they will leave a message indicating a reason for the call. Be it a family member, friend, ect...