[{"mac_prefix":"64:74:F6","mask_bits":24,"block_type":"MA-L","organization":"Shooter Detection Systems","address":"300 Newburyport Turnpike Rowley MA US 01969","country":"US"},{"mac_prefix":"70:B3:D5:EB:20","mask_bits":36,"block_type":"MA-S","organization":"Shooter Detection Systems","address":"300 Newburyport Turnpike Rowley MA US 01969","country":"US"}]