AS7018 12.206.240.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.206.240.0/2412.206.241.0/2412.206.242.0/2412.206.243.0/2412.206.244.0/2412.206.245.0/2412.206.246.0/2412.206.247.0/2412.206.248.0/2412.206.249.0/2412.206.250.0/2412.206.251.0/2412.206.252.0/2412.206.253.0/2412.206.254.0/2412.206.255.0/24