I got one too. He said he was with the IRS. I asked for his agent number and told him that I was reporting him to the IRS for using their name to misrepresent himself when making collection calls. He hung up in my face. lol
Got voicemail from this number but the message was not very clear. When I call back, the phone just rings and rings. I blocked my number and called back and still didn't get any answer.