AS4766 61.78.144.0/21 CIDR and IP Range Summary.ASN: 4766 - Korea TelecomHost Count: 2046Addressable IPs: 204861.78.144.0/2461.78.145.0/2461.78.146.0/2461.78.147.0/2461.78.148.0/2461.78.149.0/2461.78.150.0/2461.78.151.0/24