AS7018 12.3.168.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.3.168.0/2412.3.169.0/2412.3.170.0/2412.3.171.0/2412.3.172.0/2412.3.173.0/2412.3.174.0/2412.3.175.0/24