AS7018 12.197.168.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.197.168.0/2412.197.169.0/2412.197.170.0/2412.197.171.0/2412.197.172.0/2412.197.173.0/2412.197.174.0/2412.197.175.0/24