AS7018 12.207.128.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.207.128.0/2412.207.129.0/2412.207.130.0/2412.207.131.0/2412.207.132.0/2412.207.133.0/2412.207.134.0/2412.207.135.0/2412.207.136.0/2412.207.137.0/2412.207.138.0/2412.207.139.0/2412.207.140.0/2412.207.141.0/2412.207.142.0/2412.207.143.0/24