AS7018 12.206.216.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.206.216.0/2412.206.217.0/2412.206.218.0/2412.206.219.0/2412.206.220.0/2412.206.221.0/2412.206.222.0/2412.206.223.0/24