AS7018 12.148.240.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.148.240.0/2412.148.241.0/2412.148.242.0/2412.148.243.0/2412.148.244.0/2412.148.245.0/2412.148.246.0/2412.148.247.0/2412.148.248.0/2412.148.249.0/2412.148.250.0/2412.148.251.0/2412.148.252.0/2412.148.253.0/2412.148.254.0/2412.148.255.0/24