AT&T Corp. SBCIS-SIS80 (NET-70-240-128-0-1) 70.240.128.0 - 70.251.63.255 Private Customer - AT&T Internet Services SBC-70-249-178-184-29-1709133005 (NET-70-249-178-184-1) 70.249.178.184 - 70.249.178.191