Another site associates this number with the credit card services scammers, promising to lower your interest rate and on-and-on-and-on. All they're looking for is your credit card information to rob you blind. Never answer calls from unknown numbers, and if you don't want to be bothered by them, get a call blocking device. Amazon.com has a number of them usually priced between $40 to $100.
According to the recording I'm being investigated for tax fraud & it would be a "mistake " to not return the call as I might get arrested.
Jail is free 3 hots & a cot. Think I'll roll the dice & ignore them ;)