AS4766 221.149.232.0/21 CIDR and IP Range Summary.ASN: 4766 - Korea TelecomHost Count: 2046Addressable IPs: 2048221.149.232.0/24221.149.233.0/24221.149.234.0/24221.149.235.0/24221.149.236.0/24221.149.237.0/24221.149.238.0/24221.149.239.0/24