Received a call from this number an hour and 10 minutes ago.  I said "hello?" twice and got no answer.

Sounds like some kind of auto-dialer. I got a phone call from this number on 5/14.

Received a call, didn't answer, they left an unintelligible voice message (chopped).

Called several times, IRS ...righttttttttt   Called them back on friends cell ask for their HOME address..they hung up on me! Go figure

Got a call from this number, they left a message and I called back.  I was told they were calling from the US Treasury Department to let me know that the IRS had a warrant issued before the US Magistrate for my arrest due to unresolved 2012 tax issues.  I told them that I had no unresolved 2012 tax issues that I knew this was a scam, and that if they ever called this number again, they would be speaking to my attorney.  DEAD SILENCE!!