[{"mac_prefix":"00:0F:C4","mask_bits":24,"block_type":"MA-L","organization":"NST co.,LTD.","address":"4-3-1 SHINMIYAKODA HAMAMATSU SHIZUOKA JP 431-2103","country":"JP"},{"mac_prefix":"30:52:5A","mask_bits":24,"block_type":"MA-L","organization":"NST Co., LTD","address":"RM301,Daeryung Techno Town 2, 569-21 Seoul  KR 153-771","country":"KR"}]