AS7018 12.129.184.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.129.184.0/2412.129.185.0/2412.129.186.0/2412.129.187.0/2412.129.188.0/2412.129.189.0/2412.129.190.0/2412.129.191.0/24