FCC Complaint: Prerecorded Voice
This is a scam, where the caller is pretending to be from the IRS and provides that "you" owe money. They do not know your personal info, it's a phishing scam. Visit the IRS.gov website for their official number and you can call them directly and verify that this call/message is fraudulent. I called and was told the IRS does not leave voicemails.