AS57304 139.45.243.48/29 CIDR and IP Range Summary.ASN: 57304 - JSC RetnnetHost Count: 6Addressable IPs: 8 139.45.243.49139.45.243.50139.45.243.51139.45.243.52139.45.243.53139.45.243.54139.45.243.55139.45.243.56