AS4766 61.72.144.0/20 CIDR and IP Range Summary.ASN: 4766 - Korea TelecomHost Count: 4094Addressable IPs: 409661.72.144.0/2461.72.145.0/2461.72.146.0/2461.72.147.0/2461.72.148.0/2461.72.149.0/2461.72.150.0/2461.72.151.0/2461.72.152.0/2461.72.153.0/2461.72.154.0/2461.72.155.0/2461.72.156.0/2461.72.157.0/2461.72.158.0/2461.72.159.0/24