AS17623 210.83.248.0/21 CIDR and IP Range Summary.ASN: 17623 - China Unicom Shenzen networkHost Count: 2046Addressable IPs: 2048210.83.248.0/24210.83.249.0/24210.83.250.0/24210.83.251.0/24210.83.252.0/24210.83.253.0/24210.83.254.0/24210.83.255.0/24