Abstract: An apparatus and method are provided for allowing a user to access detailed and up-to-date telecommunications billing information associated with multiple telephone numbers over a data network from a computer that has a web browser installed. The apparatus includes a billing server that maintains a database of telecommunications transaction records. Each time a new telecommunications event occurs, such as a toll call from a number in the user's account, a new transaction record is added to the data base. The user interfaces to the database of transaction records through a series of web pages that are transmitted over the internet by a web server. The web pages that are generated by the web server provide the user with the capability to query the data base and to view transaction records from his/her account that are retrieved from the data base as a result of the query. An event monitor is provided to alert the user when a preset threshold for selected accounts, within a given time period, is met.