The Do Not Call list stops legitimate telemarketers. Criminals do not know how to read so they do not pay it any attention. So for them do not answer unknown calls and do not call them back. Consider getting a call blocking device (or app for your cell phone)-they're available online and start around $45. http://800notes.com/nb/search?q=call+blockers
Received a robo-call at 7:15AM. Way too early. This was for a Cash Advance company. Called the number back and the person kept disconnecting the call. Finally spoke with someone and asked to be removed from their list. They said they would, but never asked what number to remove (I was calling from a different phone). They said I "would lose all of my benefits" and I responded that I didn't care.