AS7018 74.239.240.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409674.239.240.0/2474.239.241.0/2474.239.242.0/2474.239.243.0/2474.239.244.0/2474.239.245.0/2474.239.246.0/2474.239.247.0/2474.239.248.0/2474.239.249.0/2474.239.250.0/2474.239.251.0/2474.239.252.0/2474.239.253.0/2474.239.254.0/2474.239.255.0/24