AS57304 139.45.249.16/29 CIDR and IP Range Summary.ASN: 57304 - JSC RetnnetHost Count: 6Addressable IPs: 8 139.45.249.17139.45.249.18139.45.249.19139.45.249.20139.45.249.21139.45.249.22139.45.249.23139.45.249.24