AS7018 12.239.216.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.239.216.0/2412.239.217.0/2412.239.218.0/2412.239.219.0/2412.239.220.0/2412.239.221.0/2412.239.222.0/2412.239.223.0/24