Received 2 calls today.. I didn't  answer & a voice message was left (which sounded like a recording)  She identified herself as Mrs Johnson from IRS with an urgent matter & requested I call her back at this number.  This is obviously a SCAM as IRS does NOT call you.  I did not return this Scam call.

"This message is for the internal revenue service. The very second you receive this message, I need you or your retained attorney of record to return the call. They issue at hand is extremely time sensitive. I'm officer nicky Johnson from internal revenue service and the hotline to my division as 305-515-8367. I repeat. It's 305-515-8367 don't disregard this message and do return the call before we take any action against you goodbye and take care."

This is the exact message I was left.  It wasn't even a person calling,  the voice was computer generated.