AS4766 220.77.184.0/21 CIDR and IP Range Summary.ASN: 4766 - Korea TelecomHost Count: 2046Addressable IPs: 2048220.77.184.0/24220.77.185.0/24220.77.186.0/24220.77.187.0/24220.77.188.0/24220.77.189.0/24220.77.190.0/24220.77.191.0/24