AS7018 216.78.152.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048216.78.152.0/24216.78.153.0/24216.78.154.0/24216.78.155.0/24216.78.156.0/24216.78.157.0/24216.78.158.0/24216.78.159.0/24