[{"mac_prefix":"00:03:58","mask_bits":24,"block_type":"MA-L","organization":"Hanyang Digitech Co.Ltd","address":"13F, Acetwintower2, 212-30, Guro-Dong Seoul  KR 12304","country":"KR"},{"mac_prefix":"18:53:E0","mask_bits":24,"block_type":"MA-L","organization":"Hanyang Digitech Co.Ltd","address":"103, BANWOL-DONG, HWASEONG-SI, KYUNGGI-DO, KOREA HWASEONG KYUNGGI KR 445-330","country":"KR"}]