This paper aims at investigating consumers' perception on the Corporate Social Responsibility (CSR) practices of the telecommunication service companies in Malaysia, and its antecedent to consumer attitude. The local telecommunication service providers have emphasized on service quality, stakeholder value, corporate reputation, and innovation to achieve good business performance. However, little is known about the contribution of service quality, stakeholder value, corporate reputation, and innovation on the effectiveness of organisational CSR practices. Furthermore, lack of previous studies that have investigated the impact of organisational CSR practices on consumer attitude, particularly in the context of Malaysian telecommunication industry. With the adoption of structural equation modeling approach and survey method, a total of 360 samples comprising the prepaid and postpaid mobile consumers were obtained for this study. The results shown that consumers' perception on service quality and stakeholder value had significant relationship with CSR practices. However, consumers' perception on corporate reputation and innovation had no significant relationship with CSR practices. CSR practices was positively related to consumer attitude. In the theoretical implications, service quality and stakeholder value variables were found as important elements in the proponents of Strategic CSR Theory. In the managerial implications, this study recommended that the telecommunication service providers should highly focus on more effective planning and implementation of CSR practices through better integration of CSR in its core business functions and value chain system, diversification of CSR scope and stakeholders engagement.