AS7018 216.173.240.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 4096216.173.240.0/24216.173.241.0/24216.173.242.0/24216.173.243.0/24216.173.244.0/24216.173.245.0/24216.173.246.0/24216.173.247.0/24216.173.248.0/24216.173.249.0/24216.173.250.0/24216.173.251.0/24216.173.252.0/24216.173.253.0/24216.173.254.0/24216.173.255.0/24