[{"mac_prefix":"00:1B:3E","mask_bits":24,"block_type":"MA-L","organization":"Curtis, Inc.","address":"2405 Annapolis Lane Minneapolis MN US 55441","country":"US"},{"mac_prefix":"00:50:C2:04:30","mask_bits":36,"block_type":"IAB","organization":"Curtis, Inc.","address":"2155 Niagara Lane, North Minneapolis MN US 55447","country":"US"}]