I have also received the IRS call from Alan Smith badge number 7997025 phone number 571-210-5562 if I don't call back there will be a warrant for my arrest although he does not mention anyone's name and there are four tax payers living in my home. I tried to call back but the number is not in service anymore. Hopefully he will be caught.
This number was in an email that was sent to my work address. The email was about investment opportunities... There was a link to be unsubscribed from further emails. I did not click it.