AS7018 216.78.72.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048216.78.72.0/24216.78.73.0/24216.78.74.0/24216.78.75.0/24216.78.76.0/24216.78.77.0/24216.78.78.0/24216.78.79.0/24