AS7018 74.175.144.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204874.175.144.0/2474.175.145.0/2474.175.146.0/2474.175.147.0/2474.175.148.0/2474.175.149.0/2474.175.150.0/2474.175.151.0/24