In most cases you are able to put in the address and email address to do a more thorough search. Of course if that is part of the information you are hoping to find you will need to sort through the names that come up. Most often when you enter in just a name into the white page name lookup you are going to get ten to twenty results.
You can narrow the results down by the last known address of that person if you have the information. Most often when you use a white page name lookup search site you are going to find only that they exist and the last known addresses. To obtain more information you generally have to pay for it.
The white page name lookup will usually ask for around eight dollars in a charge or more if you have several individuals you will be looking up. Once you pay that amount you will be privy to all public information on the individual. You will not be able to find unlisted phone numbers, but you should be able to find addresses, as well as listed phone numbers. In some cases you may not find all of the information you seek, but enough to make sure the person you have been searching for is found.
Most often the white page name lookup is to find someone you have lost touch with. The information is protected so that not just anyone can get a hold of information you do not want them to find. To be sure you are not in these lists you should never sign up for anything online, including free emails.