AS7018 12.203.88.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.203.88.0/2412.203.89.0/2412.203.90.0/2412.203.91.0/2412.203.92.0/2412.203.93.0/2412.203.94.0/2412.203.95.0/24