AS7018 12.52.0.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.52.0.0/2412.52.1.0/2412.52.2.0/2412.52.3.0/2412.52.4.0/2412.52.5.0/2412.52.6.0/2412.52.7.0/24