AS7018 72.148.48.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204872.148.48.0/2472.148.49.0/2472.148.50.0/2472.148.51.0/2472.148.52.0/2472.148.53.0/2472.148.54.0/2472.148.55.0/24