AS55 128.91.138.0/24 CIDR and IP Range Summary.ASN: 55 - University of PennsylvaniaHost Count: 254Addressable IPs: 256 128.91.138.0128.91.138.1128.91.138.2128.91.138.3128.91.138.4128.91.138.5128.91.138.6128.91.138.7128.91.138.8128.91.138.9128.91.138.10128.91.138.11128.91.138.12128.91.138.13128.91.138.14128.91.138.15128.91.138.16128.91.138.17128.91.138.18128.91.138.19128.91.138.20128.91.138.21128.91.138.22128.91.138.23128.91.138.24128.91.138.25128.91.138.26128.91.138.27128.91.138.28128.91.138.29128.91.138.30128.91.138.31128.91.138.32128.91.138.33128.91.138.34128.91.138.35128.91.138.36128.91.138.37128.91.138.38128.91.138.39128.91.138.40128.91.138.41128.91.138.42128.91.138.43128.91.138.44128.91.138.45128.91.138.46128.91.138.47128.91.138.48128.91.138.49128.91.138.50128.91.138.51128.91.138.52128.91.138.53128.91.138.54128.91.138.55128.91.138.56128.91.138.57128.91.138.58128.91.138.59128.91.138.60128.91.138.61128.91.138.62128.91.138.63128.91.138.64128.91.138.65128.91.138.66128.91.138.67128.91.138.68128.91.138.69128.91.138.70128.91.138.71128.91.138.72128.91.138.73128.91.138.74128.91.138.75128.91.138.76128.91.138.77128.91.138.78128.91.138.79128.91.138.80128.91.138.81128.91.138.82128.91.138.83128.91.138.84128.91.138.85128.91.138.86128.91.138.87128.91.138.88128.91.138.89128.91.138.90128.91.138.91128.91.138.92128.91.138.93128.91.138.94128.91.138.95128.91.138.96128.91.138.97128.91.138.98128.91.138.99128.91.138.100128.91.138.101128.91.138.102128.91.138.103128.91.138.104128.91.138.105128.91.138.106128.91.138.107128.91.138.108128.91.138.109128.91.138.110128.91.138.111128.91.138.112128.91.138.113128.91.138.114128.91.138.115128.91.138.116128.91.138.117128.91.138.118128.91.138.119128.91.138.120128.91.138.121128.91.138.122128.91.138.123128.91.138.124128.91.138.125128.91.138.126128.91.138.127128.91.138.128128.91.138.129128.91.138.130128.91.138.131128.91.138.132128.91.138.133128.91.138.134128.91.138.135128.91.138.136128.91.138.137128.91.138.138128.91.138.139128.91.138.140128.91.138.141128.91.138.142128.91.138.143128.91.138.144128.91.138.145128.91.138.146128.91.138.147128.91.138.148128.91.138.149128.91.138.150128.91.138.151128.91.138.152128.91.138.153128.91.138.154128.91.138.155128.91.138.156128.91.138.157128.91.138.158128.91.138.159128.91.138.160128.91.138.161128.91.138.162128.91.138.163128.91.138.164128.91.138.165128.91.138.166128.91.138.167128.91.138.168128.91.138.169128.91.138.170128.91.138.171128.91.138.172128.91.138.173128.91.138.174128.91.138.175128.91.138.176128.91.138.177128.91.138.178128.91.138.179128.91.138.180128.91.138.181128.91.138.182128.91.138.183128.91.138.184128.91.138.185128.91.138.186128.91.138.187128.91.138.188128.91.138.189128.91.138.190128.91.138.191128.91.138.192128.91.138.193128.91.138.194128.91.138.195128.91.138.196128.91.138.197128.91.138.198128.91.138.199128.91.138.200128.91.138.201128.91.138.202128.91.138.203128.91.138.204128.91.138.205128.91.138.206128.91.138.207128.91.138.208128.91.138.209128.91.138.210128.91.138.211128.91.138.212128.91.138.213128.91.138.214128.91.138.215128.91.138.216128.91.138.217128.91.138.218128.91.138.219128.91.138.220128.91.138.221128.91.138.222128.91.138.223128.91.138.224128.91.138.225128.91.138.226128.91.138.227128.91.138.228128.91.138.229128.91.138.230128.91.138.231128.91.138.232128.91.138.233128.91.138.234128.91.138.235128.91.138.236128.91.138.237128.91.138.238128.91.138.239128.91.138.240128.91.138.241128.91.138.242128.91.138.243128.91.138.244128.91.138.245128.91.138.246128.91.138.247128.91.138.248128.91.138.249128.91.138.250128.91.138.251128.91.138.252128.91.138.253128.91.138.254128.91.138.255