AS4643 203.17.139.0/24 CIDR and IP Range Summary.ASN: 4643 - Optus Customer NetworkHost Count: 254Addressable IPs: 256 203.17.139.0203.17.139.1203.17.139.2203.17.139.3203.17.139.4203.17.139.5203.17.139.6203.17.139.7203.17.139.8203.17.139.9203.17.139.10203.17.139.11203.17.139.12203.17.139.13203.17.139.14203.17.139.15203.17.139.16203.17.139.17203.17.139.18203.17.139.19203.17.139.20203.17.139.21203.17.139.22203.17.139.23203.17.139.24203.17.139.25203.17.139.26203.17.139.27203.17.139.28203.17.139.29203.17.139.30203.17.139.31203.17.139.32203.17.139.33203.17.139.34203.17.139.35203.17.139.36203.17.139.37203.17.139.38203.17.139.39203.17.139.40203.17.139.41203.17.139.42203.17.139.43203.17.139.44203.17.139.45203.17.139.46203.17.139.47203.17.139.48203.17.139.49203.17.139.50203.17.139.51203.17.139.52203.17.139.53203.17.139.54203.17.139.55203.17.139.56203.17.139.57203.17.139.58203.17.139.59203.17.139.60203.17.139.61203.17.139.62203.17.139.63203.17.139.64203.17.139.65203.17.139.66203.17.139.67203.17.139.68203.17.139.69203.17.139.70203.17.139.71203.17.139.72203.17.139.73203.17.139.74203.17.139.75203.17.139.76203.17.139.77203.17.139.78203.17.139.79203.17.139.80203.17.139.81203.17.139.82203.17.139.83203.17.139.84203.17.139.85203.17.139.86203.17.139.87203.17.139.88203.17.139.89203.17.139.90203.17.139.91203.17.139.92203.17.139.93203.17.139.94203.17.139.95203.17.139.96203.17.139.97203.17.139.98203.17.139.99203.17.139.100203.17.139.101203.17.139.102203.17.139.103203.17.139.104203.17.139.105203.17.139.106203.17.139.107203.17.139.108203.17.139.109203.17.139.110203.17.139.111203.17.139.112203.17.139.113203.17.139.114203.17.139.115203.17.139.116203.17.139.117203.17.139.118203.17.139.119203.17.139.120203.17.139.121203.17.139.122203.17.139.123203.17.139.124203.17.139.125203.17.139.126203.17.139.127203.17.139.128203.17.139.129203.17.139.130203.17.139.131203.17.139.132203.17.139.133203.17.139.134203.17.139.135203.17.139.136203.17.139.137203.17.139.138203.17.139.139203.17.139.140203.17.139.141203.17.139.142203.17.139.143203.17.139.144203.17.139.145203.17.139.146203.17.139.147203.17.139.148203.17.139.149203.17.139.150203.17.139.151203.17.139.152203.17.139.153203.17.139.154203.17.139.155203.17.139.156203.17.139.157203.17.139.158203.17.139.159203.17.139.160203.17.139.161203.17.139.162203.17.139.163203.17.139.164203.17.139.165203.17.139.166203.17.139.167203.17.139.168203.17.139.169203.17.139.170203.17.139.171203.17.139.172203.17.139.173203.17.139.174203.17.139.175203.17.139.176203.17.139.177203.17.139.178203.17.139.179203.17.139.180203.17.139.181203.17.139.182203.17.139.183203.17.139.184203.17.139.185203.17.139.186203.17.139.187203.17.139.188203.17.139.189203.17.139.190203.17.139.191203.17.139.192203.17.139.193203.17.139.194203.17.139.195203.17.139.196203.17.139.197203.17.139.198203.17.139.199203.17.139.200203.17.139.201203.17.139.202203.17.139.203203.17.139.204203.17.139.205203.17.139.206203.17.139.207203.17.139.208203.17.139.209203.17.139.210203.17.139.211203.17.139.212203.17.139.213203.17.139.214203.17.139.215203.17.139.216203.17.139.217203.17.139.218203.17.139.219203.17.139.220203.17.139.221203.17.139.222203.17.139.223203.17.139.224203.17.139.225203.17.139.226203.17.139.227203.17.139.228203.17.139.229203.17.139.230203.17.139.231203.17.139.232203.17.139.233203.17.139.234203.17.139.235203.17.139.236203.17.139.237203.17.139.238203.17.139.239203.17.139.240203.17.139.241203.17.139.242203.17.139.243203.17.139.244203.17.139.245203.17.139.246203.17.139.247203.17.139.248203.17.139.249203.17.139.250203.17.139.251203.17.139.252203.17.139.253203.17.139.254203.17.139.255