AS12200 146.177.72.0/21 CIDR and IP Range Summary.ASN: 12200 - Rackspace HostingHost Count: 2046Addressable IPs: 2048146.177.72.0/24146.177.73.0/24146.177.74.0/24146.177.75.0/24146.177.76.0/24146.177.77.0/24146.177.78.0/24146.177.79.0/24