AS7018 12.178.152.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.178.152.0/2412.178.153.0/2412.178.154.0/2412.178.155.0/2412.178.156.0/2412.178.157.0/2412.178.158.0/2412.178.159.0/24