AS7018 74.171.224.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409674.171.224.0/2474.171.225.0/2474.171.226.0/2474.171.227.0/2474.171.228.0/2474.171.229.0/2474.171.230.0/2474.171.231.0/2474.171.232.0/2474.171.233.0/2474.171.234.0/2474.171.235.0/2474.171.236.0/2474.171.237.0/2474.171.238.0/2474.171.239.0/24