AS7018 12.18.0.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.18.0.0/2412.18.1.0/2412.18.2.0/2412.18.3.0/2412.18.4.0/2412.18.5.0/2412.18.6.0/2412.18.7.0/24