[{"mac_prefix":"2C:7A:F4:A0","mask_bits":28,"block_type":"MA-M","organization":"Risuntek Inc","address":"Jiuwei Industrial Zone,Qishi Town Donguan  CN 523500","country":"CN"},{"mac_prefix":"EC:9A:0C:E0","mask_bits":28,"block_type":"MA-M","organization":"Risuntek Inc","address":"Jiuwei Industrial Zone,Qishi Town Donguan  CN 523500","country":"CN"}]