ASN 7018 - AT&T Services Inc. Number of IPs: 2048 Number of Addressable Hosts: 2046 IP Subnets in 12.238.144.0/21 12.238.144.0/2412.238.145.0/2412.238.146.0/2412.238.147.0/2412.238.148.0/2412.238.149.0/2412.238.150.0/2412.238.151.0/24