AS7018 12.156.64.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.156.64.0/2412.156.65.0/2412.156.66.0/2412.156.67.0/2412.156.68.0/2412.156.69.0/2412.156.70.0/2412.156.71.0/24