I had a message to call this number.  Said they were the IRS and I had a warrant against me and I owed almost $5,000.  They wanted to know if I wanted to resolve it, or if not they would have the Sherriff's be at my house in 30 minutes to arrest me and seize my property, my license , and lock me up.  This is a big scam to get money because I have done nothing wrong.  They sound convincing.  Don't let them scam you.