AS4766 121.185.0.0/21 CIDR and IP Range Summary.ASN: 4766 - Korea TelecomHost Count: 2046Addressable IPs: 2048121.185.0.0/24121.185.1.0/24121.185.2.0/24121.185.3.0/24121.185.4.0/24121.185.5.0/24121.185.6.0/24121.185.7.0/24