AS7018 12.188.168.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.188.168.0/2412.188.169.0/2412.188.170.0/2412.188.171.0/2412.188.172.0/2412.188.173.0/2412.188.174.0/2412.188.175.0/24