AS7018 12.40.232.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.40.232.0/2412.40.233.0/2412.40.234.0/2412.40.235.0/2412.40.236.0/2412.40.237.0/2412.40.238.0/2412.40.239.0/24