I got a call from this number 8/5/16 at 2:32pm. They left a voicemail which was a recorded voice saying they were the IRS and calling about a lawsuit they were going to file against me. They left a number to call back.

I am a CPA - this is a SCAM! The IRS does not contact you by phone and will not file a lawsuit against you like that.

If am also a CPA and we received the same call.  It is a scam, I agree.  I called the number and I got a message that this is a non working number.

I got this same message about the same time. If you listen carefully, it is an illiterate, non-English speaking voice with no details. I have been fortunate to have had chats with the IRS before and that is why I have a CPA!