Originally Posted by
pdxer
That generates a virtual card number, which can be optionally autofilled by Safari when making a purchase. A new number can be regenerated at any time.
The only way to get the actual PAN is swipe/dip the card.
Still, since you have to explicitly request a new one, it should be usable at online stores that save cards (e.g. Amazon). Of course, this card isn't the best card to be using at such merchants rewards-wise, but that's a different issue.