AS4766 121.157.64.0/19 CIDR and IP Range Summary.ASN: 4766 - Korea TelecomHost Count: 8190Addressable IPs: 8192121.157.64.0/24121.157.65.0/24121.157.66.0/24121.157.67.0/24121.157.68.0/24121.157.69.0/24121.157.70.0/24121.157.71.0/24121.157.72.0/24121.157.73.0/24121.157.74.0/24121.157.75.0/24121.157.76.0/24121.157.77.0/24121.157.78.0/24121.157.79.0/24121.157.80.0/24121.157.81.0/24121.157.82.0/24121.157.83.0/24121.157.84.0/24121.157.85.0/24121.157.86.0/24121.157.87.0/24121.157.88.0/24121.157.89.0/24121.157.90.0/24121.157.91.0/24121.157.92.0/24121.157.93.0/24121.157.94.0/24121.157.95.0/24