This number.  Recording says this is my final notification that the IRS is filing a lawsuit against me.  Seriously?  Do people really fall for this phone call?  Especially with a caller ID that has nothing to do with the IRS (yes, I know the caller ID is spoofed to start).  I guess they must since the calls keep on coming.  This is a scam IRS will never call you.  You will get written notice first.