AS7018 12.238.48.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.238.48.0/2412.238.49.0/2412.238.50.0/2412.238.51.0/2412.238.52.0/2412.238.53.0/2412.238.54.0/2412.238.55.0/24