AS7018 12.144.128.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.144.128.0/2412.144.129.0/2412.144.130.0/2412.144.131.0/2412.144.132.0/2412.144.133.0/2412.144.134.0/2412.144.135.0/2412.144.136.0/2412.144.137.0/2412.144.138.0/2412.144.139.0/2412.144.140.0/2412.144.141.0/2412.144.142.0/2412.144.143.0/24