AS7018 12.181.168.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.181.168.0/2412.181.169.0/2412.181.170.0/2412.181.171.0/2412.181.172.0/2412.181.173.0/2412.181.174.0/2412.181.175.0/24