claimed to be from IRS but synthesized voice and the message was not in grammatical English.  Reported it to FTC scams impersonating a federal, state, or local government official.

Tell # 1(201)419-6091 calling 4 times a day, finally left  a message calling IRS on hot line due to an open investigation . I know this is scam line.

Similar to the phone number 201-535-4777, they have been aggressively calling me with an automated voice message saying claiming they are they IRS. I called back and snidely asked what they wanted. The guy on the line asked what my name  phone number was. I laughed and stated that "YOU called ME." I told them, if they were really the IRS, they would know who called and would easily ID me without me stating so. I also told them to quit calling me and quit scamming people. He immediately said "YOU [***]" in some kind of Indian/Pakistani/Middle Eastern/Northern African accent and hung up. Go ahead and report this number, I can't wait for them to stop calling me because this is getting old.

Please report the phone numbers you receive to the US treasury department found at this website:
http://www.treasury.gov/tigta/contact_report_scam.shtml

A press release detailing this scam was also released on Jan 21, 2015. Read about it here:
http://www.treasury.gov/tigta/press/press_tigta-2015-01_home.htm

2014196091 this number is calling me none stop and leaving the same voice msg that your name is in serious investigation from IRS and call us back I haven't called them back yet , the msg sounds a scam,it's a loud msg to pressurize someone. I have no idea how to stop them from calling me. Smh

This person CLAIMS to be with the IRS. When asked where he is located, he says Washington, DC. Then got VERY belligerant with me and started cussing at me. I asked his name again and then he said "I am your father".