AS7018 74.247.144.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409674.247.144.0/2474.247.145.0/2474.247.146.0/2474.247.147.0/2474.247.148.0/2474.247.149.0/2474.247.150.0/2474.247.151.0/2474.247.152.0/2474.247.153.0/2474.247.154.0/2474.247.155.0/2474.247.156.0/2474.247.157.0/2474.247.158.0/2474.247.159.0/24