Called several times 9/16/16. Caller ID'd as wireless caller. I have no voice mail on my phone but somehow they are able to leave a brief message which I hear on the phone speaker. "...Hello, please enter access code. ...This is your final warning from the IRS...
Identified as IRS, said I owed money. Immediately hung up and blocked. This scam has been reported by numerous news outlets. Btw, news is not a liberal conspiracy theory. Usually it's just news, despite what some political pundits preach.