@ScamBaits#123080 Several ways:
If the scammer’s number is known, then Google search by phone number
I keep databases of tech tech, SSA. IRS scammers
Also search this scammer.info, the phone number may have been posted earlier.
Call the number and see how the scammer responds. Example they may say “Premium Techie Support” or “NTS Care”. These are infamous big scammers.
Also do search twitter tweets.