Out of curiosity, I returned a call from this number.  A woman with an Indian accent answered the phone "Department of Revenue" (or something like that), gave me her badge number, looked up my 'case' based on my phone number.  She told me there was a Federal Case based on an IRS action stemming from my 2010 tax return.  "Do you know anything about this?"  I said no, but that it was very concerning, and I certainly wanted to contact officials about it.  I asked for my case number and which branch of the Government I should contact.  Then she disconnected the call.

The precise number was 646-757-1394,  lots of similar comment re: 646-757-1389.

Got the same message from "Steve Martin". I knew his movie career has been in the dumps later, but ....
You'd think these imbeciles would come up with a better fake name--do they think Roger Gibson or Steve Martin or whatever Anglicized name would speak with a near-eastern accent?  Anyway, I actually got two calls from theat number within a few hours of each other--one a hang up and the other the same message as above.

Guess they are behind on their quota?

Called and I didn't answer so there was a split second between a group of the rings which registered as two calls from the same number.   I do not answer any call I do not recognize.   I turn my ringer down and check the caller ID whenever I feel like it.  I had the ringer up for the holidays and forgot to turn it down.  Its blocked now.  I love the feel of pressing that blocker button. . lol

Also got a call from this number with similar message about a case pending from dept of Treasury (not IRS!). Obviously some sort of scam.

I got the same call, from the Treasury Department  with an urgent matter that could involve a grand jury action,and the man's name is Steve Martin....that was the name of the reporter in the  original "Godzilla" in 1954.....guess he got out of the newspaper business.