AS7018 72.148.16.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204872.148.16.0/2472.148.17.0/2472.148.18.0/2472.148.19.0/2472.148.20.0/2472.148.21.0/2472.148.22.0/2472.148.23.0/24