Also got the call about 30 minutes ago...found several websites when I searched the number stating it was a scam and to obviously not give them any info...as someone that actually was audited on a tax return a few years ago...the IRS does everything through the mail...they never called
I received two calls from them so far. Each time I tried to call them back, it was either busy or it would ring and ring and no one would pick up. I'm glad I looked up this number on google. I was a little worried.