[{"mac_prefix":"00:17:2C","mask_bits":24,"block_type":"MA-L","organization":"TAEJIN INFOTECH","address":"6F Woolim e-Biz Center, 170-5 Seoul  KR 152-769","country":"KR"},{"mac_prefix":"70:B3:D5:A7:50","mask_bits":36,"block_type":"MA-S","organization":"Taejin InfoTech","address":"40, Imi-ro, A-411 Uiwang-si Gyeonggi-do KR 16006","country":"KR"}]