I just received a message on my answering machine today with this number claiming they are the IRS and threatening legal ramifications.
I looked up the number immediately and found this. I knew something wasn't right when I couldn't even understand his broken automated English. This just gets my blood boiling. Scumbags!!
I got the same call on my voicemail. Couldn't understand what he was saying except at the end he said if I didn't call him back he wished me good luck as this legal matter unfolds on me. I did the same thing you did I googled the number and found this. It was disturbing what I actual understood.