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This paper concerns telecommunications technologies prioritization for long-range R&D planning at the Korea Telecommunication Authority (KTA), which is the primary common carrier in Korea. Criteria weighting and technological importance ranking were determined by means of the Analytic Hierarchy Process as a decision aid, along with hierarchical representation and pairwise comparisons. The opinions derived from three divisions of KTA were analyzed and aggregated. Such aggregated prioritization weighting of technologies allows the corporation management to use it for funding decisions about technological aspects of its long-range planning for R&D projects during the period from 1992 to 2006; especially those concerning baseline budget level selection and the scope of research activities.