AS7018 12.17.224.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.17.224.0/2412.17.225.0/2412.17.226.0/2412.17.227.0/2412.17.228.0/2412.17.229.0/2412.17.230.0/2412.17.231.0/24