[{"mac_prefix":"C4:77:AB","mask_bits":24,"block_type":"MA-L","organization":"Beijing ASU Tech Co.,Ltd","address":"15/F, Global Trade Center Tower, No.36, North 3rd Ring Road, Dongcheng District, Beijing, 100013, China BEI JING BEI JING CN 100013","country":"CN"},{"mac_prefix":"F4:70:0C:20","mask_bits":28,"block_type":"MA-M","organization":"Beijing ASU Tech Co., Ltd.","address":"11th Floor Block A, Beijing Normal University Science \u0026 Technology Mansion, No.12 Xueyuan South Road,Haidian District,Beijing, China Beijing  CN 100088","country":"CN"}]