Abstract: An Internet directory system and method that is based on user telephone number addressing. The system includes an interactive white and yellow pages directory that is based on telephone numbers. Thus, a user's telephone number is a unique identifier used to key other information within the directory. The telephone number may also be used as the primary component of an email address, domain name, or web site URL for the user. The use of a telephone number as the primary component of an e-mail address or domain name greatly simplifies the process of locating a user. E-mail addresses and domain names may be readily found using standard telephone information services, such as “411”, as well as other telephone-based methods for obtaining telephone directory information. This Internet directory system and method brings all communication methods and directory services together using one searchable key, a user's telephone number.