[{"mac_prefix":"58:20:8A:80","mask_bits":28,"block_type":"MA-M","organization":"SAMIL CTS Co., Ltd.","address":"8F, Woolim Lion's Valley 3cha, 24 Dunchon Daero 388beon-gil, Jungwon-gu Seongnam-si Gyeonggi-do, KOREA KR 13403","country":"KR"}]