I've received this number twice today. They leave a message that they are calling about a judgement against me by the IRS
Fake or real and if fake how can we report it?

Calling about a judgement against me from the IRS

Just received call from this number saying IRS Is filing a lawsuit against me. Couldn't hear it was so noisy, but person had Asian accent. Hung up on me when I asked to talk to a manager and used the expletive "F-ck" and hung up on me!!