Before using any reverse  phone look up site you must be sure about it quality and accuracy both. Never fall with any free scam since there is not a single free service available over the internet. If you need address for any person then you can use a service. There might be a lot more personal reasons .People is USA can perform such lookup without any hassle since it is completely legal over there and if you are using a good service then you can get your desired result without any problem.