It is of course difficult to find a reliable cell phone directory service. There are a few things you must consider for choosing a reliable service. The service company you choose must be able to provide you with the telephone number and address of the cell phone owner, when you provide the name of the cell phone owner. You can have access to unlimited cell phone lookups if you become a member of this service. It is quick and easy to use this service to lookup cell phone number. You only need to enter the first and last name of the cell phone owner and click "search" button. You will get the results quickly providing you the required information. There are only few services which can provide these results accurately and quickly. You can choose paid and recommended cell phone directory service in order to be sure of getting reliable service. Avoid wasting your time with free services.