AT&T Corp. SBCIS-SIS80 (NET-66-161-0-0-1) 66.161.0.0 - 66.161.127.255 Consumerinfo.com.256845 SBC06616106100024050303162054 (NET-66-161-61-0-1) 66.161.61.0 - 66.161.61.255