AS7018 12.39.152.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.39.152.0/2412.39.153.0/2412.39.154.0/2412.39.155.0/2412.39.156.0/2412.39.157.0/2412.39.158.0/2412.39.159.0/24