AS7018 64.171.240.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409664.171.240.0/2464.171.241.0/2464.171.242.0/2464.171.243.0/2464.171.244.0/2464.171.245.0/2464.171.246.0/2464.171.247.0/2464.171.248.0/2464.171.249.0/2464.171.250.0/2464.171.251.0/2464.171.252.0/2464.171.253.0/2464.171.254.0/2464.171.255.0/24