AS4766 121.131.8.0/21 CIDR and IP Range Summary.ASN: 4766 - Korea TelecomHost Count: 2046Addressable IPs: 2048121.131.8.0/24121.131.9.0/24121.131.10.0/24121.131.11.0/24121.131.12.0/24121.131.13.0/24121.131.14.0/24121.131.15.0/24