I just got similar call - knew my name and address and said he wanted my lawyers info claiming he was Adam Peterson from the US Attorney's office at 213-533-0482 x198. He said I was in some trouble from the US Treasury and should have received something in the mail. I hadn't. He said to call officer John Marshall for all the details at 213-533-0482 x143.
Thanks to this site, I will not.
I got a phone call from this number stating he was from the US Treasury Dept and needed to talk to me ASAP about a class action started in my name. When I called the number back, I got a recorded message in a female's foreign, hard to understand, voice.
Ok so just go off the phone with John Harris Badge #50566 With U.S. Dept of Treasury Legal Affairs. He said that my dad owed taxes from 2009 and 2010 and wanted $3996.53. I asked if he took american express and he said "What is that? Is that a Bank"? I knew it was a scam so I played along [***] with him as long as I could. He said I needed to go to bank take out cash, then go to Safeway and buy a Voucher. He wanted me to hang up my office line, call him back on my cell, keep him on hold and take him with me to the bank and then to Safeway so I can buy Voucher. After [***] with him for as long as I could, he finnaly got mad and said that I was wasting his time and that he was gonna issue a warrant and the cops are gonna come to my House Right Now with Hand Cuffs and take my Dad to Jail. REALLY