[{"mac_prefix":"00:1E:31","mask_bits":24,"block_type":"MA-L","organization":"infomark","address":"5F.,Geown Bldg.,1360-53 Seoul Seocho-dong,Seocho-gu KR 137-863","country":"KR"},{"mac_prefix":"58:65:E6","mask_bits":24,"block_type":"MA-L","organization":"infomark","address":"#801, KINS TOWER, JEONGJA-DONG SEONGNAM GYOUNGGI KR 463-847","country":"KR"},{"mac_prefix":"88:40:67","mask_bits":24,"block_type":"MA-L","organization":"infomark","address":"3F. Humaxvillage, 216 Hwangsaeul-ro Seongnam-si  KR 13595","country":"KR"}]