AS7018 12.174.216.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.174.216.0/2412.174.217.0/2412.174.218.0/2412.174.219.0/2412.174.220.0/2412.174.221.0/2412.174.222.0/2412.174.223.0/24