AS45187 203.60.0.0/21 CIDR and IP Range Summary.ASN: 45187 - Rackspace IT Hosting AS IT Hosting Provider Hong KongHost Count: 2046Addressable IPs: 2048203.60.0.0/24203.60.1.0/24203.60.2.0/24203.60.3.0/24203.60.4.0/24203.60.5.0/24203.60.6.0/24203.60.7.0/24