AS58593 139.217.208.0/21 CIDR and IP Range Summary.ASN: 58593 - Shanghai Blue Cloud Technology Co. LtdHost Count: 2046Addressable IPs: 2048139.217.208.0/24139.217.209.0/24139.217.210.0/24139.217.211.0/24139.217.212.0/24139.217.213.0/24139.217.214.0/24139.217.215.0/24