AS7018 209.37.48.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048209.37.48.0/24209.37.49.0/24209.37.50.0/24209.37.51.0/24209.37.52.0/24209.37.53.0/24209.37.54.0/24209.37.55.0/24