Who called from 5706915179

Robo call with a computer generated voice says IRS is filing a lawsuit against "you". No identification of the person, just "you". Wants me to call this number back.

IRS Scammer - They always promise this is the last call but it never is.

Automated call claiming to be from the IRS stating that a lawsuit is being filed against you.  No specifics, just asks that you call them back.  Definitely a scam.

I've gotten the same call from many numbers. As soon as one number is shut down, they get another.