AS7018 12.186.56.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.186.56.0/2412.186.57.0/2412.186.58.0/2412.186.59.0/2412.186.60.0/2412.186.61.0/2412.186.62.0/2412.186.63.0/24