AS7018 12.198.240.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.198.240.0/2412.198.241.0/2412.198.242.0/2412.198.243.0/2412.198.244.0/2412.198.245.0/2412.198.246.0/2412.198.247.0/24