Can you find someones location if you have their phone number?

Well, if you have the app on your phone, yes you can but I'm afraid it will be a limited information. The area code in a phone number will tell where the caller is located but it will only be up to that. For you to get additional detail, you can try using phone look-up sites such as http://www.callercenter.com. It's actually a consumer protection website which posts complaints and warnings from people who received unsolicited, prank or scam calls. And what's good about the site is that it's not only free to use but if the phone number you're looking up got some complaints associated with it, you'd find that out. So it's like hitting two birds with one stone. You get the caller details and know what he's been up to, if there's any.