I have a question about my antique vintage phone?

You're right, area codes weren't introduced in America in 1947. Your phone may be much older but the number tab is more likely from the 1950's. The web site: a href="http://www.intelius.com/results.php?ReportType=33&qp=213-232-5104" rel="nofollow"http://www.intelius.com/results.php?Repo…/a claims they can give you the name of the owner of that phone number for a fee if you care to find out. Good luck with your search.