AS4766 221.163.81.0/24 CIDR and IP Range Summary.ASN: 4766 - Korea TelecomHost Count: 254Addressable IPs: 256 221.163.81.0221.163.81.1221.163.81.2221.163.81.3221.163.81.4221.163.81.5221.163.81.6221.163.81.7221.163.81.8221.163.81.9221.163.81.10221.163.81.11221.163.81.12221.163.81.13221.163.81.14221.163.81.15221.163.81.16221.163.81.17221.163.81.18221.163.81.19221.163.81.20221.163.81.21221.163.81.22221.163.81.23221.163.81.24221.163.81.25221.163.81.26221.163.81.27221.163.81.28221.163.81.29221.163.81.30221.163.81.31221.163.81.32221.163.81.33221.163.81.34221.163.81.35221.163.81.36221.163.81.37221.163.81.38221.163.81.39221.163.81.40221.163.81.41221.163.81.42221.163.81.43221.163.81.44221.163.81.45221.163.81.46221.163.81.47221.163.81.48221.163.81.49221.163.81.50221.163.81.51221.163.81.52221.163.81.53221.163.81.54221.163.81.55221.163.81.56221.163.81.57221.163.81.58221.163.81.59221.163.81.60221.163.81.61221.163.81.62221.163.81.63221.163.81.64221.163.81.65221.163.81.66221.163.81.67221.163.81.68221.163.81.69221.163.81.70221.163.81.71221.163.81.72221.163.81.73221.163.81.74221.163.81.75221.163.81.76221.163.81.77221.163.81.78221.163.81.79221.163.81.80221.163.81.81221.163.81.82221.163.81.83221.163.81.84221.163.81.85221.163.81.86221.163.81.87221.163.81.88221.163.81.89221.163.81.90221.163.81.91221.163.81.92221.163.81.93221.163.81.94221.163.81.95221.163.81.96221.163.81.97221.163.81.98221.163.81.99221.163.81.100221.163.81.101221.163.81.102221.163.81.103221.163.81.104221.163.81.105221.163.81.106221.163.81.107221.163.81.108221.163.81.109221.163.81.110221.163.81.111221.163.81.112221.163.81.113221.163.81.114221.163.81.115221.163.81.116221.163.81.117221.163.81.118221.163.81.119221.163.81.120221.163.81.121221.163.81.122221.163.81.123221.163.81.124221.163.81.125221.163.81.126221.163.81.127221.163.81.128221.163.81.129221.163.81.130221.163.81.131221.163.81.132221.163.81.133221.163.81.134221.163.81.135221.163.81.136221.163.81.137221.163.81.138221.163.81.139221.163.81.140221.163.81.141221.163.81.142221.163.81.143221.163.81.144221.163.81.145221.163.81.146221.163.81.147221.163.81.148221.163.81.149221.163.81.150221.163.81.151221.163.81.152221.163.81.153221.163.81.154221.163.81.155221.163.81.156221.163.81.157221.163.81.158221.163.81.159221.163.81.160221.163.81.161221.163.81.162221.163.81.163221.163.81.164221.163.81.165221.163.81.166221.163.81.167221.163.81.168221.163.81.169221.163.81.170221.163.81.171221.163.81.172221.163.81.173221.163.81.174221.163.81.175221.163.81.176221.163.81.177221.163.81.178221.163.81.179221.163.81.180221.163.81.181221.163.81.182221.163.81.183221.163.81.184221.163.81.185221.163.81.186221.163.81.187221.163.81.188221.163.81.189221.163.81.190221.163.81.191221.163.81.192221.163.81.193221.163.81.194221.163.81.195221.163.81.196221.163.81.197221.163.81.198221.163.81.199221.163.81.200221.163.81.201221.163.81.202221.163.81.203221.163.81.204221.163.81.205221.163.81.206221.163.81.207221.163.81.208221.163.81.209221.163.81.210221.163.81.211221.163.81.212221.163.81.213221.163.81.214221.163.81.215221.163.81.216221.163.81.217221.163.81.218221.163.81.219221.163.81.220221.163.81.221221.163.81.222221.163.81.223221.163.81.224221.163.81.225221.163.81.226221.163.81.227221.163.81.228221.163.81.229221.163.81.230221.163.81.231221.163.81.232221.163.81.233221.163.81.234221.163.81.235221.163.81.236221.163.81.237221.163.81.238221.163.81.239221.163.81.240221.163.81.241221.163.81.242221.163.81.243221.163.81.244221.163.81.245221.163.81.246221.163.81.247221.163.81.248221.163.81.249221.163.81.250221.163.81.251221.163.81.252221.163.81.253221.163.81.254221.163.81.255