[{"mac_prefix":"D4:F1:43","mask_bits":24,"block_type":"MA-L","organization":"IPROAD.,Inc","address":"#505 Byuksan digital valley 7, 170-13, Seoul  KR 152-847","country":"KR"},{"mac_prefix":"1C:AE:3E:10","mask_bits":28,"block_type":"MA-M","organization":"IPROAD,Inc","address":"407 ENC Dreamtower VI, 41 digital-ro 31gil, gurogu Seoul  KR 08375","country":"KR"}]