AS7018 12.220.232.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.220.232.0/2412.220.233.0/2412.220.234.0/2412.220.235.0/2412.220.236.0/2412.220.237.0/2412.220.238.0/2412.220.239.0/24