AS7474 59.154.224.0/21 CIDR and IP Range Summary.ASN: 7474 - SingTel Optus Pty LtdHost Count: 2046Addressable IPs: 204859.154.224.0/2459.154.225.0/2459.154.226.0/2459.154.227.0/2459.154.228.0/2459.154.229.0/2459.154.230.0/2459.154.231.0/24