AS7018 216.100.184.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048216.100.184.0/24216.100.185.0/24216.100.186.0/24216.100.187.0/24216.100.188.0/24216.100.189.0/24216.100.190.0/24216.100.191.0/24