SYSTEM AND METHOD FOR TARGETING AD USING ISP INFORMATION ON INTERNET

PURPOSE: A system and a method for a targeting AD(ADvertisement) using ISP(Internet Service Provider) information on the Internet are provided to enable an AD server to transmit the AD targeted to a user connected to a media company by offering ISP certification information and ISP utility information of the ISP to the AD server. CONSTITUTION: The AD server(124) accesses AD data fit to ISP subscriber information of the user and transmits it to a media company server(125) based on a request to receive the AD fit to user information from the media company server. A subscriber information server(121) databases/provides the ISP subscriber information needed for the targeting AD of the user according to the request of the AD server. An ISP certification server(122) provides an ISP subscriber ID number and the subscriber information based on certification information of an ISP subscriber for a user computer(100) to the subscriber information server in real-time. An ISP utility information server(123) provides utility information of the ISP subscriber to the subscriber information server in the real-time.