[{"mac_prefix":"00:50:C2:A1:E0","mask_bits":36,"block_type":"IAB","organization":"MAMAC Systems, Inc.","address":"8189 Century Blvd. Chanhassen Minnesota US 55317-8002","country":"US"},{"mac_prefix":"70:B3:D5:BA:20","mask_bits":36,"block_type":"MA-S","organization":"MAMAC Systems, Inc.","address":"8189 Century Blvd. Chanhassen null US 55317-8002","country":"US"}]