AS7018 12.52.152.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.52.152.0/2412.52.153.0/2412.52.154.0/2412.52.155.0/2412.52.156.0/2412.52.157.0/2412.52.158.0/2412.52.159.0/24