Scam caller stating you owe the IRS and court action pending unless you send them money.  These folks should be in jail. Number is spoofed.  Call probably from outside the USA.

Got a call from this number and he couldn't even speak english! I reported this on the IRS website.  571-402-0189 badge #512-786/651

Yes, got a call July 8, Indian accent guy left voicemail pretending to be IRS.  And said "good luck if thus call is ignored because consequence is heavy."

Received a call from this number today. When asked to verify my social he was unable to do so. He needs to be locked up

Return the call. The issue at hand is extremely time sensitive. My name is Ryan Lois calling you from the Internal Revenue Service. The tax and fraud unit and hotline to my division is 571-402-0189. I repeat it's 571-402-0189.
Now don't try to disregard this message and do return the call. If I don't hear from you or not from your attorney. The only thing which I can do is wish you a good luck as the situation unfolds on you. Thank you.