[{"mac_prefix":"00:50:C2:B0:F0","mask_bits":36,"block_type":"IAB","organization":"NARA Controls Inc.","address":"Nara Bldg. 71-22 Chungdamdong Kangnamku Seoul  KR 135-100","country":"KR"},{"mac_prefix":"70:B3:D5:FD:F0","mask_bits":36,"block_type":"MA-S","organization":"NARA CONTROLS INC.","address":"NARA BUILDING, 12TH FLOOR 719 SEOUL SEOUL KR 100-043","country":"KR"}]