Indian call center pretending to be the IRS and attempting to scam money out of people.  I have been receiving calls from this number and 2 others for the past 2 days from the same group.  They'll either curse you out as you ask them to verify they are legit (or call them out on not being so) and/or hang up on you to just await their next victim.

I am on do not call lists, they number and the others have been reported to the do not call complaints.
Caller: "IRS"
Call Type: Debt Collector

Update
This is the six number combination
http://800notes.com/Phone.aspx/1-346-240-0486
http://800notes.com/Phone.aspx/1-832-251-7350
http://800notes.com/Phone.aspx/1-202-803-4318
http://800notes.com/Phone.aspx/1-281-250-4004
http://800notes.com/Phone.aspx/1-360-244-4277
http://800notes.com/Phone.aspx/1-360-200-4562

DAM IRS INDIA CALL CENTER FRAUD
DONE BY INDIA MAFIA HAVING ACCESS TO YOUR IRS RECORDS FROM ANOTHER CALL CENTER
http://www.latimes.com/nation/nationnow/la-na-nn-irs-scam-20150708-story.html
http://www.latimes.com/business/la-fi-irs-tax-scam-20150312-story.html
http://timesofindia.indiatimes.com/city/ahmed ... ow/49613945.cms

THIS IS LIKE ISIS WITH MANY TERROR CELLS
THEY COME BACK AGAIN AGAIN AGAIN

WE DON'T KNOW IF ALL THIS FRAUD MONEY GOES TO ISIS TERRORISM

YET INDIA WANTS THE USA TO PAY $6B FOR THEIR COP21 32% CUT CARBON EMISSIONS PROPOSAL
THEY DON'T WANT TO SPEND ANYTHING OUT OF THEIR POCKET
YET THEY COMMIT IRS FRAUD

THEY HAVE ALL THEIR PPL IN THIS COUNTRY THAT DON"T HELP THEIR OWN PPL