[{"mac_prefix":"60:DE:35","mask_bits":24,"block_type":"MA-L","organization":"GITSN, Inc.","address":"#601~602, Daerung Post Tower 1, 288, Digital-ro Guro-gu Seoul KR 08390","country":"KR"},{"mac_prefix":"00:50:C2:D3:B0","mask_bits":36,"block_type":"IAB","organization":"Gitsn Inc.","address":"#811, Woolim Ebiz Center First, 170-5 Seoul  KR 152-769","country":"KR"}]