AS7018 12.155.240.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.155.240.0/2412.155.241.0/2412.155.242.0/2412.155.243.0/2412.155.244.0/2412.155.245.0/2412.155.246.0/2412.155.247.0/24