[{"mac_prefix":"38:1C:4A","mask_bits":24,"block_type":"MA-L","organization":"SIMCom Wireless Solutions Co.,Ltd.","address":"Building A,SIM Technology Building,No.633,Jinzhong Road,  Shanghai CN 200335","country":"CN"},{"mac_prefix":"48:E6:C0","mask_bits":24,"block_type":"MA-L","organization":"SIMCom Wireless Solutions Co.,Ltd.","address":"Building B,SIM Technology Building,No.633,Jinzhong Road Shanghai  CN 200335","country":"CN"}]