AS9318 221.139.112.0/21 CIDR and IP Range Summary.ASN: 9318 - SK Broadband Co LtdHost Count: 2046Addressable IPs: 2048221.139.112.0/24221.139.113.0/24221.139.114.0/24221.139.115.0/24221.139.116.0/24221.139.117.0/24221.139.118.0/24221.139.119.0/24