2023/8/21
Office (General Incorporated Association) Telecom Services Association
8F Flora Bldg., Nihonbashi Ningyocho 3-10-2, Chuo, Tokyo 103-0013
TEL:03-5644-7500 FAX:03-5644-7646
jimukyoku_atmark_telesa.or.jp
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https://www.telesa.or.jp/