AS4766 121.135.224.0/20 CIDR and IP Range Summary.ASN: 4766 - Korea TelecomHost Count: 4094Addressable IPs: 4096121.135.224.0/24121.135.225.0/24121.135.226.0/24121.135.227.0/24121.135.228.0/24121.135.229.0/24121.135.230.0/24121.135.231.0/24121.135.232.0/24121.135.233.0/24121.135.234.0/24121.135.235.0/24121.135.236.0/24121.135.237.0/24121.135.238.0/24121.135.239.0/24