AS9848 203.236.136.0/21 CIDR and IP Range Summary.ASN: 9848 - Sejong TelecomHost Count: 2046Addressable IPs: 2048203.236.136.0/24203.236.137.0/24203.236.138.0/24203.236.139.0/24203.236.140.0/24203.236.141.0/24203.236.142.0/24203.236.143.0/24