AS7018 74.239.128.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409674.239.128.0/2474.239.129.0/2474.239.130.0/2474.239.131.0/2474.239.132.0/2474.239.133.0/2474.239.134.0/2474.239.135.0/2474.239.136.0/2474.239.137.0/2474.239.138.0/2474.239.139.0/2474.239.140.0/2474.239.141.0/2474.239.142.0/2474.239.143.0/24