AS15395 164.138.224.0/21 CIDR and IP Range Summary.ASN: 15395 - Rackspace Ltd.Host Count: 2046Addressable IPs: 2048164.138.224.0/24164.138.225.0/24164.138.226.0/24164.138.227.0/24164.138.228.0/24164.138.229.0/24164.138.230.0/24164.138.231.0/24