This number claims to be the IRS taking a "final action". I figure it's a SCAM for several reasons. The IRS will not call. They will mail you or serve you if it's that serious. Additionally, it was a voice recording, not even a real person leaving the message. I feel this number is dangerous and to be avoided.

computerised voice scam

this number called me stating they were the irs

Claims to be IRS who is "suing you", robo call