AS7018 216.63.64.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048216.63.64.0/24216.63.65.0/24216.63.66.0/24216.63.67.0/24216.63.68.0/24216.63.69.0/24216.63.70.0/24216.63.71.0/24