AS55 128.91.42.0/24 CIDR and IP Range Summary.ASN: 55 - University of PennsylvaniaHost Count: 254Addressable IPs: 256 128.91.42.0128.91.42.1128.91.42.2128.91.42.3128.91.42.4128.91.42.5128.91.42.6128.91.42.7128.91.42.8128.91.42.9128.91.42.10128.91.42.11128.91.42.12128.91.42.13128.91.42.14128.91.42.15128.91.42.16128.91.42.17128.91.42.18128.91.42.19128.91.42.20128.91.42.21128.91.42.22128.91.42.23128.91.42.24128.91.42.25128.91.42.26128.91.42.27128.91.42.28128.91.42.29128.91.42.30128.91.42.31128.91.42.32128.91.42.33128.91.42.34128.91.42.35128.91.42.36128.91.42.37128.91.42.38128.91.42.39128.91.42.40128.91.42.41128.91.42.42128.91.42.43128.91.42.44128.91.42.45128.91.42.46128.91.42.47128.91.42.48128.91.42.49128.91.42.50128.91.42.51128.91.42.52128.91.42.53128.91.42.54128.91.42.55128.91.42.56128.91.42.57128.91.42.58128.91.42.59128.91.42.60128.91.42.61128.91.42.62128.91.42.63128.91.42.64128.91.42.65128.91.42.66128.91.42.67128.91.42.68128.91.42.69128.91.42.70128.91.42.71128.91.42.72128.91.42.73128.91.42.74128.91.42.75128.91.42.76128.91.42.77128.91.42.78128.91.42.79128.91.42.80128.91.42.81128.91.42.82128.91.42.83128.91.42.84128.91.42.85128.91.42.86128.91.42.87128.91.42.88128.91.42.89128.91.42.90128.91.42.91128.91.42.92128.91.42.93128.91.42.94128.91.42.95128.91.42.96128.91.42.97128.91.42.98128.91.42.99128.91.42.100128.91.42.101128.91.42.102128.91.42.103128.91.42.104128.91.42.105128.91.42.106128.91.42.107128.91.42.108128.91.42.109128.91.42.110128.91.42.111128.91.42.112128.91.42.113128.91.42.114128.91.42.115128.91.42.116128.91.42.117128.91.42.118128.91.42.119128.91.42.120128.91.42.121128.91.42.122128.91.42.123128.91.42.124128.91.42.125128.91.42.126128.91.42.127128.91.42.128128.91.42.129128.91.42.130128.91.42.131128.91.42.132128.91.42.133128.91.42.134128.91.42.135128.91.42.136128.91.42.137128.91.42.138128.91.42.139128.91.42.140128.91.42.141128.91.42.142128.91.42.143128.91.42.144128.91.42.145128.91.42.146128.91.42.147128.91.42.148128.91.42.149128.91.42.150128.91.42.151128.91.42.152128.91.42.153128.91.42.154128.91.42.155128.91.42.156128.91.42.157128.91.42.158128.91.42.159128.91.42.160128.91.42.161128.91.42.162128.91.42.163128.91.42.164128.91.42.165128.91.42.166128.91.42.167128.91.42.168128.91.42.169128.91.42.170128.91.42.171128.91.42.172128.91.42.173128.91.42.174128.91.42.175128.91.42.176128.91.42.177128.91.42.178128.91.42.179128.91.42.180128.91.42.181128.91.42.182128.91.42.183128.91.42.184128.91.42.185128.91.42.186128.91.42.187128.91.42.188128.91.42.189128.91.42.190128.91.42.191128.91.42.192128.91.42.193128.91.42.194128.91.42.195128.91.42.196128.91.42.197128.91.42.198128.91.42.199128.91.42.200128.91.42.201128.91.42.202128.91.42.203128.91.42.204128.91.42.205128.91.42.206128.91.42.207128.91.42.208128.91.42.209128.91.42.210128.91.42.211128.91.42.212128.91.42.213128.91.42.214128.91.42.215128.91.42.216128.91.42.217128.91.42.218128.91.42.219128.91.42.220128.91.42.221128.91.42.222128.91.42.223128.91.42.224128.91.42.225128.91.42.226128.91.42.227128.91.42.228128.91.42.229128.91.42.230128.91.42.231128.91.42.232128.91.42.233128.91.42.234128.91.42.235128.91.42.236128.91.42.237128.91.42.238128.91.42.239128.91.42.240128.91.42.241128.91.42.242128.91.42.243128.91.42.244128.91.42.245128.91.42.246128.91.42.247128.91.42.248128.91.42.249128.91.42.250128.91.42.251128.91.42.252128.91.42.253128.91.42.254128.91.42.255