it can work. you have to be really good and to invent a new system. you already have the "no" has certain so everything more you get from there it's great.
it really depends on what you want to do. if you really want some girl just find where she live by the phone number. then go there and study your target. learn everything you can about it, then make your move.
if you can't do that you can always say that a friend gave you the number due to a common interest over X subject.
just use some random excuse or even lie to get her to meet you.
get creative and be very confident.

it can work. you have to be really good and to invent a new system. you already have the "no" has certain so everything more you get from there it's great.
it really depends on what you want to do. if you really want some girl just find where she live by the phone number. then go there and study your target. learn everything you can about it, then make your move.
if you can't do that you can always say that a friend gave you the number due to a common interest over X subject.
just use some random excuse or even lie to get her to meet you.
get creative and be very confident.

Consider the logic in this: If you don't know the girl, and you're are going to do a cold approach, might as well avoid the stalking, sarge elsewhere, and do the same with another girl. You're efforts will be equivalent minus the stalking. Don't take it personally but it sounds like you're getting oneitis with this girl before you've even met her because you haven considered other options. Unless she was the legendary 11, which is as rare as finding a diamond in the streets, I wouldn't put that much effort in this girl, personally personally.