[{"mac_prefix":"F8:2E:DB","mask_bits":24,"block_type":"MA-L","organization":"RTW GmbH \u0026 Co. KG","address":"Am Wassermann 25 Cologne NRW DE 50829","country":"DE"},{"mac_prefix":"00:50:C2:8A:30","mask_bits":36,"block_type":"IAB","organization":"RTW GmbH \u0026 Co.KG","address":"Elbeallee 19 Köln NRW DE 50765","country":"DE"}]