AS7018 209.37.200.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048209.37.200.0/24209.37.201.0/24209.37.202.0/24209.37.203.0/24209.37.204.0/24209.37.205.0/24209.37.206.0/24209.37.207.0/24