[{"mac_prefix":"38:D6:E0","mask_bits":24,"block_type":"MA-L","organization":"TOPDON TECHNOLOGY Co.,Ltd.","address":"Nanshan Shenzhen Guangdong CN 518000","country":"CN"},{"mac_prefix":"78:5E:E8:90","mask_bits":28,"block_type":"MA-M","organization":"TOPDON TECHNOLOGY Co.,Ltd.","address":"Nanshan Shenzhen Guangdong CN 518000","country":"CN"}]