AS7018 216.60.136.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048216.60.136.0/24216.60.137.0/24216.60.138.0/24216.60.139.0/24216.60.140.0/24216.60.141.0/24216.60.142.0/24216.60.143.0/24