AS7018 12.52.128.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.52.128.0/2412.52.129.0/2412.52.130.0/2412.52.131.0/2412.52.132.0/2412.52.133.0/2412.52.134.0/2412.52.135.0/2412.52.136.0/2412.52.137.0/2412.52.138.0/2412.52.139.0/2412.52.140.0/2412.52.141.0/2412.52.142.0/2412.52.143.0/24