AS7018 12.71.224.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.71.224.0/2412.71.225.0/2412.71.226.0/2412.71.227.0/2412.71.228.0/2412.71.229.0/2412.71.230.0/2412.71.231.0/24