AS7018 12.156.208.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.156.208.0/2412.156.209.0/2412.156.210.0/2412.156.211.0/2412.156.212.0/2412.156.213.0/2412.156.214.0/2412.156.215.0/2412.156.216.0/2412.156.217.0/2412.156.218.0/2412.156.219.0/2412.156.220.0/2412.156.221.0/2412.156.222.0/2412.156.223.0/24