AS7018 12.38.72.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.38.72.0/2412.38.73.0/2412.38.74.0/2412.38.75.0/2412.38.76.0/2412.38.77.0/2412.38.78.0/2412.38.79.0/24