[{"mac_prefix":"30:49:50:70","mask_bits":28,"block_type":"MA-M","organization":"Shenzhen iTG robot Co.,Ltd.","address":"3rd Floor, 5th Floor, No. 5, Elephant Factory Building, Baiyunshan New Village, Tongsheng Community, Dalang Street, Longhua District Shenzhen  CN 518109","country":"CN"}]