Same thing as everyone else. They don't even leave a correct message, it kinda just starts abruptly and ends the same way, with a robotic voice repeating their phone number. Definitely a scam, don't give them anything. In fact, if you have the chops tell them you actually work for the IRS and request their district number or office location or something else made up to see if they panic.
I received a call from 206-899-6315 on my mobile. The analyst gave me her name and batch number: Kelly Wilson Batch #IRM8415, her accent was south American. She indicated that I have been sued by IRS for making mistake on my filing from 2009 to 2014 taxes. And that IRS sent me a latter in July of 2015. There is an arrest warrant for me and they have sealed all my assets. I owe $8932 and I can make payment plan arrangement with them. I told they can send an officer to arrest me and I will contact my lawyer and accountant for assistant. She hang up on me. Please do not fall for these fraud activities. I will be calling IRS and report this number and the name.