AS7018 12.13.56.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.13.56.0/2412.13.57.0/2412.13.58.0/2412.13.59.0/2412.13.60.0/2412.13.61.0/2412.13.62.0/2412.13.63.0/24