Who called from 3238615663

Message said they are calling about your case number. I have none, and they also did not indicate any police department or court.

Computerized voice left this message: "The reason of this call is to inform you that IRS is filing lawsuit against you. To get more information about this case file, please call immediately on our department number 323-861-5663. I repeat. 323-861-5663. Thank you."

2 messages on my answering machine, made to sound like the beginning part was cut off, so only has 323-861-5663 and mentioned a case but no case number.  when I called, the representive said her name was Rose Johnson and IRS id number 2040608 (which did not resemble the id number of irs agents i have dealt with before).  My apologies to Ms Johnson if she is indeed an IRS employee but they dropped the call when I asked for additional information to verify that it is indeed an IRS office that I am talking to.
So this smells like a scam

Just got the same call. They are getting more hi tech now, using auto message and not foreign accent!!

"The reason of this call is to inform you that IRS is filing lawsuit against you. To get more information about this case file, please call immediately on our department number 323-861-5663. I repeat. 323-861-5663. Thank you." The IRS NEVER telephones, they only send a letter! SCAM call!