AS7018 12.233.216.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.233.216.0/2412.233.217.0/2412.233.218.0/2412.233.219.0/2412.233.220.0/2412.233.221.0/2412.233.222.0/2412.233.223.0/24