Call received on cell phone. IRS scam. Computer voice message. Doesn't sound like the text was written by a native English speaker. "The tax crime investigation unit of IRS. The reason you are receiving this prerecorded message is to notify you that IRS has issued an arrest warrant against you. Right now you and your physical property both are being monitored and it's very important that I do hear back from you as soon as possible before we proceed further in any legal manner. My direct call back number is (939) 639-3251."