A “customized” caller ID service platform is utilized within a telecommunications network (which may be the PSTN, an IP network, or any other network for supporting voice communication) to allow for the caller ID information transmitted to a called party to be tailored to the specific called party. A database within the platform is configured to store a listing of registered subscribers and a set of “pre-defined called numbers” associated with each subscriber. For each listed number, the subscriber provides the specific customized information (for example, an account number) that is to be transmitted to that specific called number as the caller ID information. A registered subscriber is able to gain access to the platform and modify the entries as need be.