[{"mac_prefix":"00:50:C2:66:B0","mask_bits":36,"block_type":"IAB","organization":"flsystem","address":"Rm911,RegentOfficetel,547-8,Kuui-dong,Kwangjjin-gu seoul  KR 143-709","country":"KR"},{"mac_prefix":"8C:1F:64:4E:B0","mask_bits":36,"block_type":"MA-S","organization":"flsystem","address":"bundang-gu yatap-ro 28 seonam  KR 13522","country":"KR"}]