AS7018 12.131.168.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.131.168.0/2412.131.169.0/2412.131.170.0/2412.131.171.0/2412.131.172.0/2412.131.173.0/2412.131.174.0/2412.131.175.0/24