[{"mac_prefix":"5C:F8:38:00","mask_bits":28,"block_type":"MA-M","organization":"Hunan Guoke supercomputer Technologu Co.,LTD","address":"Room 13A-01, Building A, Xingwang Science Park, 280 Binhe North Road, Yuehu Street, Kaifu District, Changsha City, Hunan Province Changsha  CN 410005","country":"CN"}]