AS7018 12.188.240.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.188.240.0/2412.188.241.0/2412.188.242.0/2412.188.243.0/2412.188.244.0/2412.188.245.0/2412.188.246.0/2412.188.247.0/24