Who called from 8504502536

I'be had 2 friends who received messages from this number stating that they are being sued by the IRS.

I received a voice message from this number stating that, this is my last chance, and I am being sued by the IRS. I must call this number back and talk to someone about this issue.

This number has called me several times claiming to be the IRS. This last call, this noon, States that it's my "final warning" and I am being sued by the IRS.

Just called and tried to tell me I was being sued by the IRS.  Not amused.

I just called this number back and they said I was being sued, and if I wanted to "settle" my claim out of court I could do so. I told them it was a hoax and they told me that expect an arrest warrant out in my name.