[{"mac_prefix":"00:90:06","mask_bits":24,"block_type":"MA-L","organization":"Hamamatsu Photonics K.K.","address":"812 JOKO-CHO HAMAMATSU  JP 431-3196","country":"JP"},{"mac_prefix":"24:BF:74","mask_bits":24,"block_type":"MA-L","organization":"Hamamatsu Photonics K.K.","address":"1126-1, Ichino-cho, Higashi-ku Hamamatsu-City Shizuoka-ken JP 435-8558","country":"JP"},{"mac_prefix":"8C:1F:64:67:F0","mask_bits":36,"block_type":"MA-S","organization":"Hamamatsu Photonics K.K.","address":"314-5 Shimokanzo Iwata Shizuoka JP 4380193","country":"JP"}]