AS7018 12.189.184.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.189.184.0/2412.189.185.0/2412.189.186.0/2412.189.187.0/2412.189.188.0/2412.189.189.0/2412.189.190.0/2412.189.191.0/24