[{"mac_prefix":"00:50:C2:8B:D0","mask_bits":36,"block_type":"IAB","organization":"Matrix Switch Corporation","address":"17720 Retrac Way Grass Valley CA US 95949","country":"US"},{"mac_prefix":"70:B3:D5:90:B0","mask_bits":36,"block_type":"MA-S","organization":"Matrix Switch Corporation","address":"431 Crown Point Circle, Suite 200 Grass Valley CA US 95945","country":"US"}]