"This is officially a final notice that the IRS is filing a lawsuit against you." Though I'm surprised no one has reported this number yet, this must be a scam. I'm in good standing with regard to taxes, and the IRS uses the US Postal Service ANYway.
Yahoo search says number is a new one started on 5/31/2016 i guess that is why so few complaints they also phonrd me i just never answer numbers unknown to me thx