AS7018 12.156.224.0/19 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 8190Addressable IPs: 819212.156.224.0/2412.156.225.0/2412.156.226.0/2412.156.227.0/2412.156.228.0/2412.156.229.0/2412.156.230.0/2412.156.231.0/2412.156.232.0/2412.156.233.0/2412.156.234.0/2412.156.235.0/2412.156.236.0/2412.156.237.0/2412.156.238.0/2412.156.239.0/2412.156.240.0/2412.156.241.0/2412.156.242.0/2412.156.243.0/2412.156.244.0/2412.156.245.0/2412.156.246.0/2412.156.247.0/2412.156.248.0/2412.156.249.0/2412.156.250.0/2412.156.251.0/2412.156.252.0/2412.156.253.0/2412.156.254.0/2412.156.255.0/24