[{"mac_prefix":"4C:81:BE:A0","mask_bits":28,"block_type":"MA-M","organization":"Shenzhen Sinevolt Technology Co., Ltd","address":"Room 509, Building B, Huashengda Building, No. 22 Bagua 4th Road, Shanglin Community, Yuanling Street, Futian District, Shenzhen City, Guangdong Province, China Shenzhen Guangdong CN 518029","country":"CN"}]