AS7018 12.28.176.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.28.176.0/2412.28.177.0/2412.28.178.0/2412.28.179.0/2412.28.180.0/2412.28.181.0/2412.28.182.0/2412.28.183.0/2412.28.184.0/2412.28.185.0/2412.28.186.0/2412.28.187.0/2412.28.188.0/2412.28.189.0/2412.28.190.0/2412.28.191.0/24