As suspected, I just received a call from this number again and decided to answer.  After my hello, there was a female voice recording stating that the IRS has filed a lawsuit against me, yadda, yadda, yadda, and to call them back to pay what I owe them.
I've gotten these scam calls before from different numbers and report them to the IRS website each and every time.  Reporting doesn't do much good when the scam artists are able to just route their calls through different telephone numbers.  It's just best to tell them to F*** off and either block them or not answer.