Who called from 2407044773

Received call saying to get more information about this case file call immediately to 240-704-4773 n repeated #

Automated call stating I'm being sued by the IRS.  If you call the number back it rings endlessly then hangs up.

Looked up more info on number. Location :Silver Spring, MD, Carrier :Cricket Communications.  Must be a burner phone.  Scam for sure, don't call them back.

My mother in law reported a message left on her voice mail from 240-704-4773 indicating this was the IRS and they were going to file a lawsuit against her if she did not respond.
total scam

Automated call same as everyone else is saying.  Scam.  Do not call them.