[{"mac_prefix":"8C:1F:64:AB:40","mask_bits":36,"block_type":"MA-S","organization":"Beijing Zhongchen Microelectronics Co.,Ltd","address":"Room 0309, 3rd Floor, Building 2, China Agricultural University International Pioneer Park, No. 10 Tianxiu Road, Haidian District Beijing Beijing CN 100081","country":"CN"}]