AS7018 12.192.152.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.192.152.0/2412.192.153.0/2412.192.154.0/2412.192.155.0/2412.192.156.0/2412.192.157.0/2412.192.158.0/2412.192.159.0/24