AS7018 12.28.208.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.28.208.0/2412.28.209.0/2412.28.210.0/2412.28.211.0/2412.28.212.0/2412.28.213.0/2412.28.214.0/2412.28.215.0/2412.28.216.0/2412.28.217.0/2412.28.218.0/2412.28.219.0/2412.28.220.0/2412.28.221.0/2412.28.222.0/2412.28.223.0/24