AS7018 12.0.240.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.0.240.0/2412.0.241.0/2412.0.242.0/2412.0.243.0/2412.0.244.0/2412.0.245.0/2412.0.246.0/2412.0.247.0/2412.0.248.0/2412.0.249.0/2412.0.250.0/2412.0.251.0/2412.0.252.0/2412.0.253.0/2412.0.254.0/2412.0.255.0/24