This is a phishing scam coming from Austin Texas. The shadowed the Apple Inc. Customer Support number in an attempt to gain access to your Mac and your Apple account. How they know what type of Computer system you have is not known,so that part of the Scam is likely a 50/50 hit or miss for these Criminals. Could be that they hacked a database base of Apple Customers and your number was on that list.
This is all the information I could obtain after a Google search regarding this false number.
1 complaints this year
1 total complaints
Anonymous on +1 276-773-0466
Neil Donley on +1 646-699-8811
this was a Spam call probably extortion. It was a robotic call not a real life person. It claimed...
Anonymous on +1 205-732-9125
Anonymous on +1 323-555-2471
hi I'm English and live with horses
Anonymous on +1 876-297-9971
I dont want to ever see this number
calling me again