AS7018 216.100.64.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048216.100.64.0/24216.100.65.0/24216.100.66.0/24216.100.67.0/24216.100.68.0/24216.100.69.0/24216.100.70.0/24216.100.71.0/24