I called the Better Business Bureau and this is a big scam. They adviced me to call Tresury Inspector General IRS 800-366-4484. Make a complaint. keep calling until they comply.

SCAM SCAM...omg terrified me can't they stop this guy!!! how the hell did they get our number???

There are a couple of possibilities:
1 - If you've *ever* entered your phone number on *any* web site... and that web site gets hacked... Then your number is potentially everywhere. The site that got hacked might not even realize it got hacked.
2 - They might not have "got" your number anywhere. They could be just using an automatic dialer that goes through your area code and dials every possible number. It doesn't take that long (and time is something these lowlifes have plenty of) abd with Internet phone connections it hardly costs them anything.

I just got a call from this number and they left a recorded voicemail. Stating I owed the IRS money. I know I do not owe the IRS any back taxes. This is completely fraud.

I also got a call from this number claiming to be from the IRS and telling me or my attorney to call right away on a very urgent matter. The recording said I needed to contact them before they started legal proceedings (or something to that effect). I panicked and immediately called the number and got a voicemail recording saying the mailbox was full.  I then thought I would google the number just in case to see if it was from an IRS number, and I am glad I did as I see that it was a scam!