AS7018 12.197.216.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.197.216.0/2412.197.217.0/2412.197.218.0/2412.197.219.0/2412.197.220.0/2412.197.221.0/2412.197.222.0/2412.197.223.0/24