AS4766 121.189.16.0/20 CIDR and IP Range Summary.ASN: 4766 - Korea TelecomHost Count: 4094Addressable IPs: 4096121.189.16.0/24121.189.17.0/24121.189.18.0/24121.189.19.0/24121.189.20.0/24121.189.21.0/24121.189.22.0/24121.189.23.0/24121.189.24.0/24121.189.25.0/24121.189.26.0/24121.189.27.0/24121.189.28.0/24121.189.29.0/24121.189.30.0/24121.189.31.0/24