AS7018 12.47.72.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.47.72.0/2412.47.73.0/2412.47.74.0/2412.47.75.0/2412.47.76.0/2412.47.77.0/2412.47.78.0/2412.47.79.0/24