AS7018 12.15.152.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.15.152.0/2412.15.153.0/2412.15.154.0/2412.15.155.0/2412.15.156.0/2412.15.157.0/2412.15.158.0/2412.15.159.0/24