[{"mac_prefix":"00:50:C2:2F:40","mask_bits":36,"block_type":"IAB","organization":"Efficient Channel Coding","address":"600 Safeguard Plaza Brooklyn Heights  US 44131","country":"US"},{"mac_prefix":"00:50:C2:47:A0","mask_bits":36,"block_type":"IAB","organization":"Efficient Channel Coding","address":"600 Safeguard Plaza Brooklyn Heights  US 44131","country":"US"},{"mac_prefix":"00:50:C2:70:A0","mask_bits":36,"block_type":"IAB","organization":"Efficient Channel Coding","address":"4830 E. 49th St. Cuyahoga Heights Ohio US 44125","country":"US"}]