Same, reported. Robo-call saying to, "Regard this as a final notice" of my IRS debt and that the IRS would be pursuing a lawsuit against me if I didn't call back right away.
Guess the IRS doesn't have anything on NASA..... It's bad enough getting calls like this on my government number and they hung up once I spelled it out for them.
Claimed to be IRS and said there was a mistake in a past tax year. We need to pay money today or they will freeze our assets and go to prison. Said her name was Maryann and gave a badge number. When we called the number back it is out of service.