AS7018 12.187.240.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.187.240.0/2412.187.241.0/2412.187.242.0/2412.187.243.0/2412.187.244.0/2412.187.245.0/2412.187.246.0/2412.187.247.0/24