received the same recorded message, IRS is going to sue me. Didnt call back because of these posts. thank you

I see this number is making its rounds today.  Must be a scam.

Yes, they are busy doing their rounds

Same message as described by others.  This is a scam.   The IRS does not call you ever.  They communicate by mail.

SCAM!!! We are all being sued! Oh no!!! Must call back and give them everything they ask for!!! Be ready to give them info such as SS#, DL info, Birthdates, passwords, bank account numbers, etc.
Seriously, as I was writing this, I got a second robocall from the same number. If you call be sure to have all of the above ready.
The Salvation army is a more worthwhile cause.