AS7018 12.228.152.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.228.152.0/2412.228.153.0/2412.228.154.0/2412.228.155.0/2412.228.156.0/2412.228.157.0/2412.228.158.0/2412.228.159.0/24