AS7018 12.13.240.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.13.240.0/2412.13.241.0/2412.13.242.0/2412.13.243.0/2412.13.244.0/2412.13.245.0/2412.13.246.0/2412.13.247.0/24