AS7018 68.153.224.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204868.153.224.0/2468.153.225.0/2468.153.226.0/2468.153.227.0/2468.153.228.0/2468.153.229.0/2468.153.230.0/2468.153.231.0/24