AS9848 210.121.40.0/21 CIDR and IP Range Summary.ASN: 9848 - Sejong TelecomHost Count: 2046Addressable IPs: 2048210.121.40.0/24210.121.41.0/24210.121.42.0/24210.121.43.0/24210.121.44.0/24210.121.45.0/24210.121.46.0/24210.121.47.0/24