AS132492 203.0.184.0/21 CIDR and IP Range Summary.ASN: 132492 - Australian Rail Track Corporation LimitedHost Count: 2046Addressable IPs: 2048203.0.184.0/24203.0.185.0/24203.0.186.0/24203.0.187.0/24203.0.188.0/24203.0.189.0/24203.0.190.0/24203.0.191.0/24