AS11975 128.239.21.0/24 CIDR and IP Range Summary.ASN: 11975 - The College of William and MaryHost Count: 254Addressable IPs: 256 128.239.21.0128.239.21.1128.239.21.2128.239.21.3128.239.21.4128.239.21.5128.239.21.6128.239.21.7128.239.21.8128.239.21.9128.239.21.10128.239.21.11128.239.21.12128.239.21.13128.239.21.14128.239.21.15128.239.21.16128.239.21.17128.239.21.18128.239.21.19128.239.21.20128.239.21.21128.239.21.22128.239.21.23128.239.21.24128.239.21.25128.239.21.26128.239.21.27128.239.21.28128.239.21.29128.239.21.30128.239.21.31128.239.21.32128.239.21.33128.239.21.34128.239.21.35128.239.21.36128.239.21.37128.239.21.38128.239.21.39128.239.21.40128.239.21.41128.239.21.42128.239.21.43128.239.21.44128.239.21.45128.239.21.46128.239.21.47128.239.21.48128.239.21.49128.239.21.50128.239.21.51128.239.21.52128.239.21.53128.239.21.54128.239.21.55128.239.21.56128.239.21.57128.239.21.58128.239.21.59128.239.21.60128.239.21.61128.239.21.62128.239.21.63128.239.21.64128.239.21.65128.239.21.66128.239.21.67128.239.21.68128.239.21.69128.239.21.70128.239.21.71128.239.21.72128.239.21.73128.239.21.74128.239.21.75128.239.21.76128.239.21.77128.239.21.78128.239.21.79128.239.21.80128.239.21.81128.239.21.82128.239.21.83128.239.21.84128.239.21.85128.239.21.86128.239.21.87128.239.21.88128.239.21.89128.239.21.90128.239.21.91128.239.21.92128.239.21.93128.239.21.94128.239.21.95128.239.21.96128.239.21.97128.239.21.98128.239.21.99128.239.21.100128.239.21.101128.239.21.102128.239.21.103128.239.21.104128.239.21.105128.239.21.106128.239.21.107128.239.21.108128.239.21.109128.239.21.110128.239.21.111128.239.21.112128.239.21.113128.239.21.114128.239.21.115128.239.21.116128.239.21.117128.239.21.118128.239.21.119128.239.21.120128.239.21.121128.239.21.122128.239.21.123128.239.21.124128.239.21.125128.239.21.126128.239.21.127128.239.21.128128.239.21.129128.239.21.130128.239.21.131128.239.21.132128.239.21.133128.239.21.134128.239.21.135128.239.21.136128.239.21.137128.239.21.138128.239.21.139128.239.21.140128.239.21.141128.239.21.142128.239.21.143128.239.21.144128.239.21.145128.239.21.146128.239.21.147128.239.21.148128.239.21.149128.239.21.150128.239.21.151128.239.21.152128.239.21.153128.239.21.154128.239.21.155128.239.21.156128.239.21.157128.239.21.158128.239.21.159128.239.21.160128.239.21.161128.239.21.162128.239.21.163128.239.21.164128.239.21.165128.239.21.166128.239.21.167128.239.21.168128.239.21.169128.239.21.170128.239.21.171128.239.21.172128.239.21.173128.239.21.174128.239.21.175128.239.21.176128.239.21.177128.239.21.178128.239.21.179128.239.21.180128.239.21.181128.239.21.182128.239.21.183128.239.21.184128.239.21.185128.239.21.186128.239.21.187128.239.21.188128.239.21.189128.239.21.190128.239.21.191128.239.21.192128.239.21.193128.239.21.194128.239.21.195128.239.21.196128.239.21.197128.239.21.198128.239.21.199128.239.21.200128.239.21.201128.239.21.202128.239.21.203128.239.21.204128.239.21.205128.239.21.206128.239.21.207128.239.21.208128.239.21.209128.239.21.210128.239.21.211128.239.21.212128.239.21.213128.239.21.214128.239.21.215128.239.21.216128.239.21.217128.239.21.218128.239.21.219128.239.21.220128.239.21.221128.239.21.222128.239.21.223128.239.21.224128.239.21.225128.239.21.226128.239.21.227128.239.21.228128.239.21.229128.239.21.230128.239.21.231128.239.21.232128.239.21.233128.239.21.234128.239.21.235128.239.21.236128.239.21.237128.239.21.238128.239.21.239128.239.21.240128.239.21.241128.239.21.242128.239.21.243128.239.21.244128.239.21.245128.239.21.246128.239.21.247128.239.21.248128.239.21.249128.239.21.250128.239.21.251128.239.21.252128.239.21.253128.239.21.254128.239.21.255