[{"mac_prefix":"D4:BA:BA:20","mask_bits":28,"block_type":"MA-M","organization":"GuangZhou Ostec Electronic Technology Co.,Limited","address":"2of No.8, West Lane,Jiangcheng Road,Bangjiang East Village,Dalong Street,Panyu District,Guangzhou City,Guangdong,P.R.China Guangzhou  CN 511400","country":"CN"}]