[{"mac_prefix":"E0:5A:9F:B0","mask_bits":28,"block_type":"MA-M","organization":"Shenzhen Rongan Networks Technology Co.,Ltd","address":"Room 1903, Industrial and Research building of Sun Yat-Sen university,no.1, Yuexing 4th road, Yuehai street,Nanshan district Shenzhen Guangdong CN 518057","country":"CN"}]