Who called from 3474740463

Robocall went to voicemail. No message other than call this number.

Called saying they're IRS worth a warrant for my arrest unless I pay 3k in back taxes.

Do not respond to any voices messages that tells you that you will have a warrant for your arrest if you don't pay back taxes.  It's a total scam and they continue to change their number due to the FBI being onto them. They have scammed millions for people in the USA.

Beware of these scammers who tell you that you have a warrant out for your arrest for delinquent back taxes.