AS7018 12.228.128.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.228.128.0/2412.228.129.0/2412.228.130.0/2412.228.131.0/2412.228.132.0/2412.228.133.0/2412.228.134.0/2412.228.135.0/2412.228.136.0/2412.228.137.0/2412.228.138.0/2412.228.139.0/2412.228.140.0/2412.228.141.0/2412.228.142.0/2412.228.143.0/24