First time this number called me was this morning.  I didn't answer because i didn't know the number.  "The IRS is bringing a lawsuit against you.  Please call us immediately" is the message they left.  Yeah, right.  The caller ID said "Wireless caller."

Same here but I didn't answer My Blocker didn't let the call through the number is not on my accept list.

Same deal here. Both most husband and I got it.

Same Voicemail left on my phone. Robo-voice saying that the IRS was filing a lawsuit against me.
I have been informed that the IRS will contact you through mail if they are looking to get in touch with you.
I did online searches for what this phone number is for, and is in no way related to the IRS.