AS4766 121.128.192.0/20 CIDR and IP Range Summary.ASN: 4766 - Korea TelecomHost Count: 4094Addressable IPs: 4096121.128.192.0/24121.128.193.0/24121.128.194.0/24121.128.195.0/24121.128.196.0/24121.128.197.0/24121.128.198.0/24121.128.199.0/24121.128.200.0/24121.128.201.0/24121.128.202.0/24121.128.203.0/24121.128.204.0/24121.128.205.0/24121.128.206.0/24121.128.207.0/24