AS7018 70.243.72.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204870.243.72.0/2470.243.73.0/2470.243.74.0/2470.243.75.0/2470.243.76.0/2470.243.77.0/2470.243.78.0/2470.243.79.0/24