Reverse Phone Number Lookups

A service that allows you to look at information on a person's phone number is very useful these days when almost everybody has both a cellphone and a landline, think about this for example, you have written down a person's number but can't remember who it was that give it to you. If it is a landline number it is relatively easy to use a reverse lookup service to get all the information about the owner. If the number is a cellphone however, it can be slightly more difficult. The main reason for that extra difficulty is that the information on cellphone numbers are held independently by the individual carrier companies, and therefore the free directories don't have access to this information.