[{"mac_prefix":"3C:9F:C3","mask_bits":24,"block_type":"MA-L","organization":"Beijing Sinead Technology Co., Ltd.","address":"Room 504,Block A, New material Building, Yongfeng industrial, Haiding District, Beijing.China Beijing Beijing CN 100094","country":"CN"},{"mac_prefix":"80:61:5F","mask_bits":24,"block_type":"MA-L","organization":"Beijing Sinead Technology Co., Ltd.","address":"Room 504,Block A, New material Building, Yongfeng industrial, Haiding District, Beijing.China Beijing Beijing CN 100094","country":"CN"}]