A system and method for providing a Contact Management System (CMS) so that individual owners of personal contact data may control and manage the access and dissemination of the personal data. The owner of personal contact data may securely register the data with secured information vault of the CMS and specify which other parties may have access to the personal data. In this way, duplication of the personal data is avoided, but at the same time is always current. In use, a second party's device, such as a telephone or a PDA may access the CMS database and under public key infrastructure (PKI) controls identify themselves so that access to the owner's personal data may be verified. Once verified, the telephone number or other data may be returned to the device where a call may be automatically placed or otherwise used.