AS7018 216.78.224.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048216.78.224.0/24216.78.225.0/24216.78.226.0/24216.78.227.0/24216.78.228.0/24216.78.229.0/24216.78.230.0/24216.78.231.0/24