There are online sites which offer free phone look up service, but user can be assured that they do not, and will never, guarantee user quality. User may also research at the public white pages and directories, but these again do not guarantee accuracy, because any member of the public can access the site in certain instances, and tamper with the content. This again do not guarantee quality and accuracy which are very vital for user. Those which guarantee user quality, and excellent customer service, may however charge their services so high that user may not be able to afford them.
The secret is always to conduct an unhurried online research. User should first select those service
The lookup service to some extent involves the intrusion of privacy and must be done within the provisions of the law. This is the reason why most sites will not provide any detail regarding any number stored in their databases, unless user has subscribed and accepted their terms and conditions. Once user does it within the law, it is however 100% legal.