AS7018 12.30.240.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.30.240.0/2412.30.241.0/2412.30.242.0/2412.30.243.0/2412.30.244.0/2412.30.245.0/2412.30.246.0/2412.30.247.0/24