AS4766 211.253.48.0/21 CIDR and IP Range Summary.ASN: 4766 - Korea TelecomHost Count: 2046Addressable IPs: 2048211.253.48.0/24211.253.49.0/24211.253.50.0/24211.253.51.0/24211.253.52.0/24211.253.53.0/24211.253.54.0/24211.253.55.0/24