Got 3 calls today. The automated message said that the IRS is going file a lawsuit against me. Called back and someone with suspicious accent told the same thing. When asked about the reason the answer was that the call will be transferred to the right department. And then the communication was cut off. Looks fishy.
The automated message said that the IRS is going file a lawsuit against me and for the detail to call this number. If you have some problem, IRS gonna send you by letter, never on the phone.
I got two calls from this number today (Oct 30, 2015). Didn't answer it as it's a NY exchange and unknown to me. After seeing the previous comments, glad I didn't answer it. Blocked them.