They are located in India. This is a common scam originating in India. You can't prevent the calls from originating, but you can get a call blocker, which helps somewhat. They try to cuss you out, but their English is so bad, it just comes out sounding like a duck on crack cocaine. I just laugh at them.
Got the same call .. I told him this is a scam call and he got mean and then so did I . He hung up on me and I keep calling him back to yell at him... Now it's busy when I call . I think he blocked me cause I keep calling back.. F him !!!
Got voice message from phone number '2022411366' on May 3, 2014 10:22 AM saying "The issue at hand is extremely time sensitive. My officer Heather Grey from Internal Revenue Service and the hotline to my division is 2022411366. I repeat it's 2022411366. Don't disregard this message and do return the call before we take any legal allegation against you. Goodbye and take care."