AS4766 128.134.136.0/21 CIDR and IP Range Summary.ASN: 4766 - Korea TelecomHost Count: 2046Addressable IPs: 2048128.134.136.0/24128.134.137.0/24128.134.138.0/24128.134.139.0/24128.134.140.0/24128.134.141.0/24128.134.142.0/24128.134.143.0/24