Who called from 5042758842

beware this is a irs scam

I keep getting a phone call from this unwanted phone number when I call back it's not a valid number.

This number called and left a garbled message about a case number and I should call back.  The IRS wasn't mentioned but otherwise it sounds similar to those mentioned above.  The IRS doesn't call people and when they do they don't call from a cell phone. SCAM!

Irs filing a claim against me