AS7018 209.36.136.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048209.36.136.0/24209.36.137.0/24209.36.138.0/24209.36.139.0/24209.36.140.0/24209.36.141.0/24209.36.142.0/24209.36.143.0/24