Who called from 5803098024

Got a call just a few minutes ago. Caller ID stated "Unassigned". I immediately hit the "block now" button on my call blocker as soon as I saw that. Who would ever consider answering a call with a CID like that?

received call from Clinton OK     listened to recorded message - treasury dpt  IRS is coming to get me  what a joke   REMEMBER this-  IRS does not communicate by phone or e mail to collect taxes

I live in Canada. We do not have IRS here. It's a scam  to get personal info on you so they can use it to rip you off.