AS7018 74.251.224.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409674.251.224.0/2474.251.225.0/2474.251.226.0/2474.251.227.0/2474.251.228.0/2474.251.229.0/2474.251.230.0/2474.251.231.0/2474.251.232.0/2474.251.233.0/2474.251.234.0/2474.251.235.0/2474.251.236.0/2474.251.237.0/2474.251.238.0/2474.251.239.0/24