AS4766 121.131.16.0/20 CIDR and IP Range Summary.ASN: 4766 - Korea TelecomHost Count: 4094Addressable IPs: 4096121.131.16.0/24121.131.17.0/24121.131.18.0/24121.131.19.0/24121.131.20.0/24121.131.21.0/24121.131.22.0/24121.131.23.0/24121.131.24.0/24121.131.25.0/24121.131.26.0/24121.131.27.0/24121.131.28.0/24121.131.29.0/24121.131.30.0/24121.131.31.0/24