AS7018 12.238.128.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.238.128.0/2412.238.129.0/2412.238.130.0/2412.238.131.0/2412.238.132.0/2412.238.133.0/2412.238.134.0/2412.238.135.0/2412.238.136.0/2412.238.137.0/2412.238.138.0/2412.238.139.0/2412.238.140.0/2412.238.141.0/2412.238.142.0/2412.238.143.0/24