After getting four calls today from this number, (the usual IRS lawsuit scam), I tried calling the number to see if it was live, and to see if I could put some fear into them.  I did get an Indian man in what sounded like a call center, who answered as if he was from the IRS.  I said that I was with the US Dept. of Internal Revenue and that it's come to my attention that calls from this number are being made impersonating this department (the IRS).  Before getting any reply, I said that to continue our investigation I'll need to get some personal information from you.  When asked his first and last name, he said 'John Parker'.  I then asked his country of origin (where you were born).  He replied 'Washington DC'.  When I told him I found that hard to believe b/c of his accent, he called me a mother f***** and hung up.