AS7018 216.100.192.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048216.100.192.0/24216.100.193.0/24216.100.194.0/24216.100.195.0/24216.100.196.0/24216.100.197.0/24216.100.198.0/24216.100.199.0/24