Fake IRS. Left a message on my voice mail. The message sounded like it was from a robot.

Message:
Treasury the reason you got a call from our department is just to let you know that we have received an arrest warrant against your name under your ssn so before we could go ahead and start the legal actions on your name. We want your retained attorney of record to give us a call back as soon as possible at 200 to 846100 (should be 202-846-0111)  to repeat the number again 200 to 846011 and your case identification number is ###-####. Do not disregard this message if we do not receive a call from you or your attorney either your warrant will get activated. Thank you.