I received a call from this number, India accent, claiming to be IRS, I told him that I know the IRS number (800-829-1040), and I will forward his number to the IRS, and he hung up on me.
It sounds a lot like the IRS Scam calls I've gotten in the past, except mine was a robo-recording. It was hard to hear what the recording was saying, but I did catch the words "Fraud", "Before this matter goes to the Federal Claims Court", "Have a Nice Day."