AS7018 12.11.152.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.11.152.0/2412.11.153.0/2412.11.154.0/2412.11.155.0/2412.11.156.0/2412.11.157.0/2412.11.158.0/2412.11.159.0/24