[{"mac_prefix":"00:1C:E8","mask_bits":24,"block_type":"MA-L","organization":"Cummins Inc","address":"1400 73rd Ave NE Fridley MN US 55432","country":"US"},{"mac_prefix":"7C:E4:A1:B0","mask_bits":28,"block_type":"MA-M","organization":"Cummins Inc","address":"500 Jackson St, Box 3005, Columbus, Indiana 47202-3005 Columbus IN US 47202-3005","country":"US"}]