AS4643 203.13.142.0/24 CIDR and IP Range Summary.ASN: 4643 - Optus Customer NetworkHost Count: 254Addressable IPs: 256 203.13.142.0203.13.142.1203.13.142.2203.13.142.3203.13.142.4203.13.142.5203.13.142.6203.13.142.7203.13.142.8203.13.142.9203.13.142.10203.13.142.11203.13.142.12203.13.142.13203.13.142.14203.13.142.15203.13.142.16203.13.142.17203.13.142.18203.13.142.19203.13.142.20203.13.142.21203.13.142.22203.13.142.23203.13.142.24203.13.142.25203.13.142.26203.13.142.27203.13.142.28203.13.142.29203.13.142.30203.13.142.31203.13.142.32203.13.142.33203.13.142.34203.13.142.35203.13.142.36203.13.142.37203.13.142.38203.13.142.39203.13.142.40203.13.142.41203.13.142.42203.13.142.43203.13.142.44203.13.142.45203.13.142.46203.13.142.47203.13.142.48203.13.142.49203.13.142.50203.13.142.51203.13.142.52203.13.142.53203.13.142.54203.13.142.55203.13.142.56203.13.142.57203.13.142.58203.13.142.59203.13.142.60203.13.142.61203.13.142.62203.13.142.63203.13.142.64203.13.142.65203.13.142.66203.13.142.67203.13.142.68203.13.142.69203.13.142.70203.13.142.71203.13.142.72203.13.142.73203.13.142.74203.13.142.75203.13.142.76203.13.142.77203.13.142.78203.13.142.79203.13.142.80203.13.142.81203.13.142.82203.13.142.83203.13.142.84203.13.142.85203.13.142.86203.13.142.87203.13.142.88203.13.142.89203.13.142.90203.13.142.91203.13.142.92203.13.142.93203.13.142.94203.13.142.95203.13.142.96203.13.142.97203.13.142.98203.13.142.99203.13.142.100203.13.142.101203.13.142.102203.13.142.103203.13.142.104203.13.142.105203.13.142.106203.13.142.107203.13.142.108203.13.142.109203.13.142.110203.13.142.111203.13.142.112203.13.142.113203.13.142.114203.13.142.115203.13.142.116203.13.142.117203.13.142.118203.13.142.119203.13.142.120203.13.142.121203.13.142.122203.13.142.123203.13.142.124203.13.142.125203.13.142.126203.13.142.127203.13.142.128203.13.142.129203.13.142.130203.13.142.131203.13.142.132203.13.142.133203.13.142.134203.13.142.135203.13.142.136203.13.142.137203.13.142.138203.13.142.139203.13.142.140203.13.142.141203.13.142.142203.13.142.143203.13.142.144203.13.142.145203.13.142.146203.13.142.147203.13.142.148203.13.142.149203.13.142.150203.13.142.151203.13.142.152203.13.142.153203.13.142.154203.13.142.155203.13.142.156203.13.142.157203.13.142.158203.13.142.159203.13.142.160203.13.142.161203.13.142.162203.13.142.163203.13.142.164203.13.142.165203.13.142.166203.13.142.167203.13.142.168203.13.142.169203.13.142.170203.13.142.171203.13.142.172203.13.142.173203.13.142.174203.13.142.175203.13.142.176203.13.142.177203.13.142.178203.13.142.179203.13.142.180203.13.142.181203.13.142.182203.13.142.183203.13.142.184203.13.142.185203.13.142.186203.13.142.187203.13.142.188203.13.142.189203.13.142.190203.13.142.191203.13.142.192203.13.142.193203.13.142.194203.13.142.195203.13.142.196203.13.142.197203.13.142.198203.13.142.199203.13.142.200203.13.142.201203.13.142.202203.13.142.203203.13.142.204203.13.142.205203.13.142.206203.13.142.207203.13.142.208203.13.142.209203.13.142.210203.13.142.211203.13.142.212203.13.142.213203.13.142.214203.13.142.215203.13.142.216203.13.142.217203.13.142.218203.13.142.219203.13.142.220203.13.142.221203.13.142.222203.13.142.223203.13.142.224203.13.142.225203.13.142.226203.13.142.227203.13.142.228203.13.142.229203.13.142.230203.13.142.231203.13.142.232203.13.142.233203.13.142.234203.13.142.235203.13.142.236203.13.142.237203.13.142.238203.13.142.239203.13.142.240203.13.142.241203.13.142.242203.13.142.243203.13.142.244203.13.142.245203.13.142.246203.13.142.247203.13.142.248203.13.142.249203.13.142.250203.13.142.251203.13.142.252203.13.142.253203.13.142.254203.13.142.255