I blocked my number by dialing *67 then called 425-953-8957 and reached: "Records indicate that you may owe back taxes to the state or the IRS." Their ''records'' are wrong, but how many saps pony up $ to pay?
Recorded message:
"Hi, this is Sheila, and I'm calling to talk to you about your current IRS back tax debt..."
This might be phishing or a "tax relief" organization which attempts to negotiate a tax reduction for you.
Regardless, it's illegal to start a phone call with a recorded message unless the company has done business with you before (i.e. loan "reminders") or political or charity calls.
I'm about to report this to the "Do not call" people (Google Do Not Call to find them because of the recorded message... I hope everyone here does the same (it charges them $16K per incident).