AS9848 203.231.56.0/21 CIDR and IP Range Summary.ASN: 9848 - Sejong TelecomHost Count: 2046Addressable IPs: 2048203.231.56.0/24203.231.57.0/24203.231.58.0/24203.231.59.0/24203.231.60.0/24203.231.61.0/24203.231.62.0/24203.231.63.0/24