AS4766 220.73.168.0/21 CIDR and IP Range Summary.ASN: 4766 - Korea TelecomHost Count: 2046Addressable IPs: 2048220.73.168.0/24220.73.169.0/24220.73.170.0/24220.73.171.0/24220.73.172.0/24220.73.173.0/24220.73.174.0/24220.73.175.0/24