AS7018 74.228.176.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204874.228.176.0/2474.228.177.0/2474.228.178.0/2474.228.179.0/2474.228.180.0/2474.228.181.0/2474.228.182.0/2474.228.183.0/24