AS55 128.91.128.0/24 CIDR and IP Range Summary.ASN: 55 - University of PennsylvaniaHost Count: 254Addressable IPs: 256 128.91.128.0128.91.128.1128.91.128.2128.91.128.3128.91.128.4128.91.128.5128.91.128.6128.91.128.7128.91.128.8128.91.128.9128.91.128.10128.91.128.11128.91.128.12128.91.128.13128.91.128.14128.91.128.15128.91.128.16128.91.128.17128.91.128.18128.91.128.19128.91.128.20128.91.128.21128.91.128.22128.91.128.23128.91.128.24128.91.128.25128.91.128.26128.91.128.27128.91.128.28128.91.128.29128.91.128.30128.91.128.31128.91.128.32128.91.128.33128.91.128.34128.91.128.35128.91.128.36128.91.128.37128.91.128.38128.91.128.39128.91.128.40128.91.128.41128.91.128.42128.91.128.43128.91.128.44128.91.128.45128.91.128.46128.91.128.47128.91.128.48128.91.128.49128.91.128.50128.91.128.51128.91.128.52128.91.128.53128.91.128.54128.91.128.55128.91.128.56128.91.128.57128.91.128.58128.91.128.59128.91.128.60128.91.128.61128.91.128.62128.91.128.63128.91.128.64128.91.128.65128.91.128.66128.91.128.67128.91.128.68128.91.128.69128.91.128.70128.91.128.71128.91.128.72128.91.128.73128.91.128.74128.91.128.75128.91.128.76128.91.128.77128.91.128.78128.91.128.79128.91.128.80128.91.128.81128.91.128.82128.91.128.83128.91.128.84128.91.128.85128.91.128.86128.91.128.87128.91.128.88128.91.128.89128.91.128.90128.91.128.91128.91.128.92128.91.128.93128.91.128.94128.91.128.95128.91.128.96128.91.128.97128.91.128.98128.91.128.99128.91.128.100128.91.128.101128.91.128.102128.91.128.103128.91.128.104128.91.128.105128.91.128.106128.91.128.107128.91.128.108128.91.128.109128.91.128.110128.91.128.111128.91.128.112128.91.128.113128.91.128.114128.91.128.115128.91.128.116128.91.128.117128.91.128.118128.91.128.119128.91.128.120128.91.128.121128.91.128.122128.91.128.123128.91.128.124128.91.128.125128.91.128.126128.91.128.127128.91.128.128128.91.128.129128.91.128.130128.91.128.131128.91.128.132128.91.128.133128.91.128.134128.91.128.135128.91.128.136128.91.128.137128.91.128.138128.91.128.139128.91.128.140128.91.128.141128.91.128.142128.91.128.143128.91.128.144128.91.128.145128.91.128.146128.91.128.147128.91.128.148128.91.128.149128.91.128.150128.91.128.151128.91.128.152128.91.128.153128.91.128.154128.91.128.155128.91.128.156128.91.128.157128.91.128.158128.91.128.159128.91.128.160128.91.128.161128.91.128.162128.91.128.163128.91.128.164128.91.128.165128.91.128.166128.91.128.167128.91.128.168128.91.128.169128.91.128.170128.91.128.171128.91.128.172128.91.128.173128.91.128.174128.91.128.175128.91.128.176128.91.128.177128.91.128.178128.91.128.179128.91.128.180128.91.128.181128.91.128.182128.91.128.183128.91.128.184128.91.128.185128.91.128.186128.91.128.187128.91.128.188128.91.128.189128.91.128.190128.91.128.191128.91.128.192128.91.128.193128.91.128.194128.91.128.195128.91.128.196128.91.128.197128.91.128.198128.91.128.199128.91.128.200128.91.128.201128.91.128.202128.91.128.203128.91.128.204128.91.128.205128.91.128.206128.91.128.207128.91.128.208128.91.128.209128.91.128.210128.91.128.211128.91.128.212128.91.128.213128.91.128.214128.91.128.215128.91.128.216128.91.128.217128.91.128.218128.91.128.219128.91.128.220128.91.128.221128.91.128.222128.91.128.223128.91.128.224128.91.128.225128.91.128.226128.91.128.227128.91.128.228128.91.128.229128.91.128.230128.91.128.231128.91.128.232128.91.128.233128.91.128.234128.91.128.235128.91.128.236128.91.128.237128.91.128.238128.91.128.239128.91.128.240128.91.128.241128.91.128.242128.91.128.243128.91.128.244128.91.128.245128.91.128.246128.91.128.247128.91.128.248128.91.128.249128.91.128.250128.91.128.251128.91.128.252128.91.128.253128.91.128.254128.91.128.255