AS57304 139.45.249.0/28 CIDR and IP Range Summary.ASN: 57304 - JSC RetnnetHost Count: 14Addressable IPs: 16 139.45.249.1139.45.249.2139.45.249.3139.45.249.4139.45.249.5139.45.249.6139.45.249.7139.45.249.8139.45.249.9139.45.249.10139.45.249.11139.45.249.12139.45.249.13139.45.249.14139.45.249.15139.45.249.16