AS7474 203.32.144.0/21 CIDR and IP Range Summary.ASN: 7474 - SingTel Optus Pty LtdHost Count: 2046Addressable IPs: 2048203.32.144.0/24203.32.145.0/24203.32.146.0/24203.32.147.0/24203.32.148.0/24203.32.149.0/24203.32.150.0/24203.32.151.0/24