AS7018 12.188.40.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.188.40.0/2412.188.41.0/2412.188.42.0/2412.188.43.0/2412.188.44.0/2412.188.45.0/2412.188.46.0/2412.188.47.0/24