AS7018 12.203.176.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.203.176.0/2412.203.177.0/2412.203.178.0/2412.203.179.0/2412.203.180.0/2412.203.181.0/2412.203.182.0/2412.203.183.0/2412.203.184.0/2412.203.185.0/2412.203.186.0/2412.203.187.0/2412.203.188.0/2412.203.189.0/2412.203.190.0/2412.203.191.0/24