AS7018 12.15.168.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.15.168.0/2412.15.169.0/2412.15.170.0/2412.15.171.0/2412.15.172.0/2412.15.173.0/2412.15.174.0/2412.15.175.0/24