Report the Calls to the real IRS here:
•report the incident to the Treasury Inspector General for Tax Administration at 800-366-4484.
•You can also file a complaint with the Federal Trade Commission at FTC.gov. Add "IRS Telephone Scam" to the comments in your complaint.

Do consider maybe getting a call blocking device or phone.. You can google them and many are around $60.00 or so.

said from IRS criminal investigations...

Got a call today today saying I was named in an IRS criminal investigation and that I needed to call this number.  I called and a guy with a thick foreign accent identified himself as agent Allen Foster and started asking me for info, told him that's not how it goes.  He's supposed to know my info if he's real.  He hung up.  I called him back a little while later and acted concerned about my IRS criminal investigation.  When he asked for my name, I told him it was Jane Fonda, then willingly gave him a bogus phone number and SSN.  He seemed pretty excited.  He said he would check my file and get back with me.  I thanked him.  I've been calling back all afternoon as Eleanor Roosevelt, Cindy Brady, Lois Lane and a variety of other people...  Pretty fun!

These Dump SOB. Don't have nothing to do. I got that called yesterday. I return the call this morning and of course it was a  scam. Thank God I have a IRS office next door and was told by a rep. that is a scam. Now I call the SOB back and they hung up.!!!!

I got a call from this [***], saying that my husband also with the number 202-808-3670. Scam!!!