AS7018 12.181.0.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.181.0.0/2412.181.1.0/2412.181.2.0/2412.181.3.0/2412.181.4.0/2412.181.5.0/2412.181.6.0/2412.181.7.0/24